As for Anna after her program- why interpret sth into nothing again? She was crushed and had an exaggerated hard reaction on herself, like she and most of the Eteri girls always do, because she made what in that camp is considered huge mistakes in her skate.
Maya had the exact same sad tired face, hunched over posture and eyes to the floor.
There doesn't always have to be some secret illness or injury or mental issue be discovered as to why a girl cannot skate a 4Lz 4F 3Lz-3T 3Lz-3Lo program clean everytime - it's simply incredibly hard.
I think it's partly because I don't think you get to the level those girls are at without striving for perfection and being disappointed if you don't achieve it is natural, and its likely partly because she was competing with other people where how she performed impacted everyone on her team's chances of winning. And probably partly because I don't think she was fully recovered from pneumonia when she started training for Nationals and similar to injuries; if you try to come back early you may successfully do it but its going to take longer to recover.