I always wondered what happened to Michaela. Any time I saw her, she was smiley and pleasant. I would have loved to have seen said hissy-fit, and Dale's reaction!
I saw her ranting on air about how some other presenters weren't explaining about wick trimming properly. She was really sharp with the Q presenter, and it was clear her sniping was aimed at the other YC presenter...just after Rosa had joined the team. Coincidence?