I thinks this discussion is going nowhere now.
Let me state few facts.
Every single GP was won by Eteri's Skater.
From 6 possible skaters, Eteri had 4 at GPF.
Eteri's Skaters swept podium at Russian nationals, GPF and Europeans, were highly likely to repeat it at words.
At the last world championship Eteri's skaters won 1-2 place.
Same goes for the last Olympics.
This year, in Juniors, Eteri's Skaters took 2 Medals from JGPF (with Injured Valieva), Swept Podium at Nationals, and were 2 points(or 4 don't remember well) from sweeping Junior worlds.
Trusova jumps all the quads minus one, beat anybody but her team mates and set record at FP.
So what do we have here? If any of these theories about system not working for her, her lacking attention are right and she still has such results... she must be very,very good. Obviously she is an amazing talent, nobody denies that, but is she that good?
Because if she isn't that good ( I frankly doubt anybody can be THAT good) and system was in fact, working for her and she was getting attention from the coach(es) she needed, she made her life considerably harder.
I guess we have to wait and see, but right now, this decision looks like she left the best coaches in the world, the coaches who made her multi-quad jumping, record holder and one of the best skaters in the world to the coach whose best accomplishment is winning national championship among novices.
There can be countless emotional reasons justifying this transfer, but right now, it's not logical.
Imagine you and 2 your friend were going to hunt a bear.
All of you are getting your weapons from best gun dealer in the world.
You are constantly amazing, but 3rd among your friends.
One day you decide that you want more ammo, gun dealer can't give you that and you switch to pistol(okay, probably desert eagle

) for next hunting.
is it right decision? it may be, only if you were so good that you managed to beat everyone else at bear-hunting with not enough ammo and/or with a gun/shooting style not fitting for you. But if you had enough ammo with you and gun wasn't a problem.. Somedays you eat the b(e)ar, and somedays ...It eats you
Hopefully, next season will come and we will see who was the problem, the gun or the one who held it.