Watching the clips again, this fight looks even more pathetic for all parties involved.
The ref is still by far the nut low. If he did tell the fighters to continue, turning his back on the fight is completely inexcusable (his facial expression following Floyd's shot tells you where his head was at). If you're having a problem at ringside, you stop the fight and fix it, you don't just look the other way.
Floyd gonna Floyd. It was an obviously douche move, but whatever. He's Floyd, if you don't expect him to act like a douche, you didn't do your homework.
Ortiz comes off so much worse on the second viewing. The headbutts are bad, but he was correctly penalized for them. He was getting frustrated and lost his cool. It's no excuse though, and it's hard to take his side after that. Then he has the sack to act like nothing's wrong after he got cheap shot. He couldn't have been more "I'm just here for my check" than if he'd come out and said it.
oh and: