It strikes me as odd the whole "ejection" angle because IAC isn't really in a position where it would need to do that for ratings... (then again I haven't seen the ratings but I assume they're high as ever
lol) and it's something, I think, they've never done before.
Even (C)BB are a little bit hesitant on the "dodgy tweets" grounds and they're famed for ejecting any and everyone
Tom from BB18 is the most recent example I can think of.
Maybe it was a mutual agreement sort of thing. Let him know this story had been brewing, and he asked to speak to his agent or w/e