ref did his job properly. but why the fight was waved off is #6 I forgot to add above.
why does a ref wave off a fight at 8 1/2 count? He didnt even ask the fighter if he was OK to continue. Are you telling me Perez was so totally fOcked up at that point that the ref decided "Oh shite, he could get killed if I let this continue!" ?

This was the clearest fix I've ever seen.