Too bad there really wasn't much to see in her skating besides the jumps.
And even those left much to be desired. That is why she was working on the Quad so hard back when (similar to Mao's work on the Axel, which is likely slowing the progress she should/could be making on fixing her other jumps, though I'm pretty sure she's limiting her repetitions on that jump for obvious reasons).
The 3Lutz/3Loop combination in that video from 2008 CoChina was Under-rotated. It's hard to miss, because YouTube lets you play back that video at quarter speed (* 0.25) - judges at a CoP combination are probably using sophisticated Dartfish rigs with high end cameras with optical zoom and expensive computer hardware; they aren't going to miss that... Her 3Flip was never that great (odd considering her Lutz was quite decent, though she did take a longer take-off into it compared to the flip). Her easier triples were a little better. Her double axel tended to lean quite a bit, and the take-off was too spinny for my taste (almost a Lipinski Axel, but not quite). That being said compared to Asada her technique is better. No edge call on that Lutz.
Ando also had some issues with URs (especially in her combinations) because while she was a bigger jumper than someone like Asada, she lacked the snap of, say... Tara Lipinski or Jenny Kirk, and got into her rotation at the top of her jump. She wasn't a fast rotater, and simply didn't rotate efficiently enough to eliminate UR issues with that technique. Her coaches needed (need?) to work with her on getting into her rotation quicker. If she had done that the loop would have been clean and she would have avoided issues, like her UR issues in Vancouver. With the way she rotates, she needs something like 2x the airtime Lipinski or Jenny Kirk needed to rotate any of their triples, and that hurts with back-end loop combinations because 99% of the time the loop is not going to be as high as a solo 3Loop or a 3Toe at the back end of a combination. Slutskaya would agree.
The tendency of many ladies to rotate into the ice on their jumps makes it worse, as it makes the landing harder to control. If you aren't good at checking the first jump landing (and fast/efficiently, like e.g. Lipinski or Slutskaya) in a back end loop combination, then the landing edge will curve too much and you will be forced to fire off the second jump earlier/quicker than you'd deem optimal, which can result in a weaker (as in, lower/less air time) jump. Also, the rules are set up in a way that skaters can train to "legally" UR jumps, which if landing at 30 degrees UR in a tight position, exacerbates that issues (the tighter you are, the harder it is to check out the first jump and the quicker the landing edge will loop around, which means you may have to fire off the loop combo much earlier than you're optimally prefer to, so it will be significantly less powerful than you're like and you may have to pop/double it).
We see this a lot in Men's field with Quads and Triple Axel combinations (where they are forced to double the second jump, when they intend a triple). Though some men, like Yagudin, were good at firing of triple toe back-end combos with little to no speed anyways - a loop in those situations would be near impossible. The jump mechanics simply aren't conducive to that, and they'd probably lean and be forced to step out or fall as a result of trying to muscle that jump that way.
Ando faced lots of UR issues because of her tendency to delay rotation to almost the climax of the jump. This tends to work well when you're comfortable and your timing is on, also when you're feeling well, but when you get nervous or have other issues that force you to jump smaller/skate slower/etc. it can leave you in situations where you don't have enough time to fully rotate the jump. And... since Skating actually is a demanding sport, the issue tends (generally) to get worse as the program progresses (goes from "we'll give you the benefit of the doubt" to "obvious").
Apart from that, Ando's PCS should be on the level of second group skaters, and her spins are terrible. Frankly, she would have done better under 6.0 around the time Sarah Hughes was competing. Back then they'd have had no choice but to ignore her URs and Top 10 skaters with bad spins and weaker (but not bad, per se) skating skills were par for the course.