I think Vivian, despite her talking heads, was in a "I'm in" mentality. She was messing up dances she should have mastered the previous year and her power was inconsistent. I HATE at the moment of being cut when girls say "I will be even more powerful!" when they have had time to show it.
In fairness to her, going back to the can-she-jumpsplit debate in Kelli's office, I do get where she was coming from. She needed to be pushed out of the plane to prove to herself that she could do it and her injury was healed. She tried to articulate it, but she came across glib even if that wasn't her intention.
I have no insider knowledge (damn!) but I wonder if she was somewhat "toxic" in the locker room.
I think of Vivian a lot when watching Victoria, thinking to that meeting in the office with Sydney when Vivian asked if it's ok to be fun; Judy said that [I'm paraphrasing a little} that it was find to be fun and cute with Vivian's cute personality but not to be a rookie who is loud, obnoxious, and wanting to be the center of attention.
VK should reflect on this.