I disagree with you Terror that Rich was going to recover, however I do agree that the shots were illegal and deserved to have the fight stopped.
IMO, an illegal blow, no matter what point in the fight it happens, should result in a break for the fighter to recover. There is a caveat though. The illegal strike had to be avoidable. In Vitor's case, Rich was laying prone on the ground and Vitor simply smashed him at the base of the neck. I couldn't care less if Rich was "done" or not because we really don't know if he was or not. Vitor was perfectly capable of throwing a punch to the side of Rich's head and didn't. Also, it isn't like Rich was bouncing around to avoid the shots, resulting in Vitor's punches hitting the back of the head by chance. He wasn't really moving.
The same thing applies to the Amir vs. Hendrick fight. I don't buy the excuse that they were simply going crazy to finish the fight and that it was over anyways. That is pure crap to me.
If they started calling fighters out on this crap, no matter how much it pissed off the fans, it would make them choose their shots more wisely. For fighter safety, this needs to happen.