I have two points:
If Kelli would have been a good manager, she would have kept her emotional distance and would not have ventured into weird demented games with favorites. What are these games with favorites? Here is a random list:
The way how Kelli behaved towards Victoria was and is a disgrace. When a girl that Kelli emotionally doesn't like makes an insignificant mistake, she gets cuts by Kelli. If Victoria falls out of a basic turn she laughs it off. That is NOT an emotional distance. So Kelli could have easily behaved unprofessional and be a friend to Hannah because she does it all the time. You don't get to choose when you behave 'professional' and when not.
One does not have to be a board certified psychiatrist to see that Hannah is coming into TC with mental issues. This said mental issue cannot be wished away or danced away or hugged away. It needs to be taken seriously, not only by Hannah, but by everyone around her. I do not think that someone with Hannah's past can just ignore the signs and venture into certain high stress activities without giving it a second thought. Should she have come to TC? I say no. Can someone with acute mental issues perform like they need her to perform is in this light an honest concern. Whether Hannah was cut because she voiced concerns about Covid is secondary. What should be considered is that Hannah voiced concerns about the Covid measures under the influence of a mental issue. Two years on the squad should have provided Hannah with enough cases to voice concerns about, yet she did not protest. I do not think it is right to cut someone for voicing concerns, and now we all can see with our own eyes and through Hannah's own voice that there is more at play than only voicing concerns.