Her coach is definitely abusive, she has referred to her club as a factory, and her skaters as materials.
Valieva, and the others coming from the same coach, have bad technique which leads to injury in their backs and ankles which, along which excessive overtraining, and starvation, means they are burned out and too injured to continue at 17/18, Eteri herself doesn’t expect them to continue beyond then. One of her students, one year too young for this Olympics, has spoken about how devastated she is the Olympics weren’t postponed, because by 2026 she will be 18 and unable to compete at the required level.
The jumping technique they train with, not only causes injury, but also relies on weight and speed ratio, not strength. So when the skaters get older and grow they can no longer compete the jumps as the skills are not transferable to their new height, they would have to learn to jump again with the proper technique to continue.
A previous prodigy, now retired, has a significant back injury where it is fused into a permanent twist in the direction of her jumping rotation - she is 22 and will have to live with the pain and complications for the rest of her life. Her coaches don’t care, she was replaceable with new young faces, just like Valieva.