If you watch the official closely you can see him running in with his hand on the flag before the punch was even thrown. I think the official was going to throw the flag regardless
After all the crap Florida players said and did it was a good bait by Gaulden. The guy threw a punch regardless.
If the ref was going to throw a flag regardless, it probably would have been on us for taunting. Nevertheless, their guy got the ejection he deserved for not being able to stand there with a little dignity. The tv announcers seemed to think it's okay for him to "just throw his arm out there," which is downright silly.