I’ve seen a lot of really weird FB bans in the trans community. The name issue is a big one, but I’ve heard of folks transitioning, and being marked as fraudulently impersonating their former selves. All of it ends up with a heaping dose of frustration because FB is less then open, and difficult to work with a lot of the time.
Who knows why they banned her. Until they say, nobody will know, not even her.