So then you agree that Diaz should be at least DQed from the fight, and probably fired from UFC and suspended from fighting altogether for the two obvious dirty shots he took well after the round ended? "Rules are rules" are they not?
Or are some rules not as 'honourable' as others?
The ref decided not to DQ him so the rules were followed. I certainly wouldn't have blamed the ref if he had DQd Nick. That's completely different to making up rules on the fly though.