I absolutely agree with you
Except for Liza's lack of being on the main olympic team and not catching a break...
there is a pattern of her bombing at Nationals which keeps her there.
It's not someone else keeping her down or that she can't truly catch a break. It is literally herself who is bombing for some type of reason SPECIFICALLY when it counts at RusNationals.
I used to feel very sad that she never got a chance UNTIL I reviewed ALL of her RUSnats programs and realized this was not the case.
Here is a breakdown of her own self sabotage at RusNats below (even if she was doing great in GPs, and worlds for some reason she always breaks down at Russian Nationals. It is a pattern over and over and over):
In
2011 - 2012 Season at Rusnats she was
6th place (bombed the short with 3Lz fall with a low level 2 spin and then bombs the free with a 3F and 3S fall)
In
2013 - 2014 Olympic Season Rusnats she was 10th place (She bombed the short. Fell on the 3Lz + 3T jump combo with under rotations. Then in the free bombed again with a 3F fall and messed up her combo with a very low level 2S +2T + 1Lo combo jump for 3 points then she messed up her spin)
In
2015-2016 Season at Rusnats she was
8th place (Attempted her 3A Yes! But severely bombed with a 3A fall in the short and a very bad combo. It was a popped 2T going into an under rotated struggled 3T for a 2T+3T<< combo which was bad to see her struggle here, and then she severely bombed the free with a poor 3A landing, a popped 3F turning to 1F, under rotations on her 3T + 3T, messed up her 3S +2A SEQ jump with a step out on her 3S).
In
2016 - 2017 Season at Rusnats she was
8th place (Kept the 3T+3T placing her lower than girls doing 3F, 3Lz, and 3Lo (Alina) as their second combo in their 3-3s at the time and had rough landings on her 3Lz and 2A. Bombed the free when she fell on 3F<, and 3Lz<<. She did do a 3T+3T but again it is a lower level 3-3 combo compared to those who outscored her)
In
2017 - 2018 Olympic Season at Rusnats she was 7th place (her combo was still a low level 3T+3T in her short with level 3 spins but it was a clean short. Her free was unfortunately weak as her best jumps were a series of only 3-2-2 (which had errors) and 3-2 combos and absolutely no 3-3s at all which was/is on current American Mariah Bell level with the +SEQ 2A for reduced based value and the top three Russian ladies of that event were not doing this).
In
2019 - 2020 Season at Rusnats she was
4th place (She finally leveled up---I was so proud---and ditched the 3T+3T for a 3F+3T and restored her 3A finally!!!! But it was too late

Anna, Aliona, and Sasha already arrived with triple axels and quads.
Worse! Liza severely bombed the free after a pretty good short and STILL did not have the staple two 3-3 combos that Anna, Aliona, Sasha and most of the top Russian ladies have. Fell on 4T<, stepped out on 3A<, touched the ice to keep from falling on 3F<, and the final nail in the coffin was the two footed landing on 3lo. I think she has an issue with 3-3 combos generally as it is not consistent with her, but she never truly rectified it maybe due to her past ankle injury. So it forever remains her weakness if she gets a quad she may jump a 4T+2T but not 4T + 3T or +eu 3S or +eu 3F as a second combo which sadly will always place someone with a 4-3 or 3-3 combo above her even with a huge PCS boost---like at this years Nationals against juniors).
In
2020 - 2021 Season at Rusnats she was
7th place ( she bombed the free with a +Rep on her 3Aq fall which was meant to be a 3A+2T combo. Kept doing the +SEQ 2A jump which again was not good at the time since it reduced the base value up until now where the ISU will now give full points this season in 2022/20223 I believe, and her best high value combo was only 2-3-2 at 9 points with the bonus so the improvement was minuscule in terms of gaining clean 3-3 combos to secure any podium at Nationals even if clean. So she bombed the free skate

again...and jumped a solo 2Lo instead of 3Lo)
Finally In 2021 - 2022 Olympic Season at Rusnats
she was 7th place (she bombed the short with a fall on her 3A and did a 3-2 combo instead of 3-3 like everyone else which was 100% crucial for this crop of top skaters. That secured her 7th place position because every single girl above her executed their 3-3 combos in the short. Then in her FS she messed up with a 3A < resulting in lost points and
she did not do a single 3-3 combo at all which is crucial for the olympics as most of the Korean/Japanese non-Russian podium ladies have at least/most one 3-3 and Wakaba + Young You had 3A as well so it was risky for Liza to mess up and not even have a single 3-3 to go to the Olys. while everyone else even the juniors had 3-3 combos. It still remains a big weakness and can push most elite Russian skaters with ultra-c above her. International skaters still do many 3-2s so Liza never had to really worry THAT much internationally as long as she landed a clean 3A (also Daria and Aliona easily won internationally without utlra-c due to this international weakness among female skaters...this is the lack of two good 3-3 combos to maximize points when no ultra-c is present) but in terms of Russian skaters it is an ignored issue Liza must overcome this season if she wants to win a higher placement in RusNats and stop this yearly bombing at RusNats and I hope she does). Also the fact that she was the only senior without a quad may have hurt her, but Anna fell on her one and only quad that day and that was Liza's only opportunity that season. With Anna's fall if Liza had the ability to pull three triple-triple combos like Anna she could have potentially secured a spot. She had a massive 14 point GOE lead compared to Anna even with the lower tech program, but it could not save Liza as 3-3 combos were/still is her ultimate weakness while 3-3 combos are Anna's (and all the Eteri skaters really) ultimate true advantage whether or not Anna falls on a single quad which is how she successfully secured her 3rd spot for the Olys over Liza despite a quad fall to give her an edge over Liza's RusNats program this olympic season.
That being said, Liza unfortunately has this pattern of bombing specifically at Russian nationals even if she was doing well in events prior (In the GP she was on fire). This season she did well, but still ended up bombing the short at Nationals while most above her secured a leading position with a short program advantage over Liza.
The only times she performed somewhat well at Russian Nationals was in 2012 - 2013 season where she placed 1st against weaker skaters who messed up just as badly despite messing up herself in the free with a popped 1F jump and step-out on the 3S. She still won. She also had a 3Lz +3T combo there and her free program was not clean but she won against a cleaner Elena Radionova through PCS. Also in the 2014 - 2015 season of Rusnats she won 2nd beating junior Evgenia M from Eteri's camp in PCS but her programs there were cleaner than in 2012-2013 and she was on absolute fire that year winning 1st in almost all her competitions. Her PCS ever since then could not mask the real issue when she had errors as the gap in tech between her and the other quadsters were more than 7 points. Out of 10 RusNats she only succeeded in 2 which was ultimately her own doing in terms of inconsistency, and lower level jumps that resembles the current elite American female skater state of 3-2 combos and +SEQ at the 2022 Olys and 2022 worlds.
Hopefully this season she will crush it at Nationals or power through it like Trusova did in the free at the Olys with not a single fall, but looking at her patterns of bombing at Nationals I will keep my personal expectations realistic. I don't know if its nerves...I am not sure, but she has a bad yearly track records at RusNats. At least this year that +SEQ won't hurt her total base value.