I'm not sure she has tbh, other than been mouthy towards Ranson who, it seems to me, doesn't like views that might run counter to her own.
I'm not defending or disparaging anyone here but it seems to me that Ranson may not have been party to the bigger picture. In fact there's no reason why she should have been. She was the Medical Director, one small cog in a not insubstantial group of people trying to work their way through a once in a 2 x generation pandemic. Saying "close the borders now" is one thing but not being party to everything else that was going on at the same time smacks of naivety and a little egotistical... the "I'm right and everyone else is wrong" syndrome. Harping on in that manner ain't gonna win you friends. Which leads me to wonder if she was a team player? If not, then perhaps it shouldn't come as a surprise that some of her colleagues sidelined her.
Just a thought and I'll probably get shot down for putting it out there.