@portability - Trust me, I am Pro-Carwin and I know you are too since you are from Colorado but you gotta think of it this way. Brock was defending, maybe not in the most aesthetic way, but he was defending.
Why do you think it is the ref's fault for Carwin not being able to finish Brock? It is Carwin fault for not punching a hole through the Brock's face. The referee is there to stop fights if they need to be stopped, in this case, none of Carwin's punches were getting through so no need for it to be stopped.
I've read numerous emails of folks blaming the ref and it really puzzles me. If Carwin couldn't finish Brock, then what is the complaint? That it should have been falsely stopped earlier? Unfortunately, waaaaaaaaaaay too many fights got stopped too early. Studies have shown that punches to the head after you are knocked out are actually less damaging than when you are awake so I say, let these guys get KTFO'd and we'll have less of these guys complaining about early stoppages.
Fact is, Carwin has poor cardio and poor submission defense. I'm not buying his explanation that his body "seized up" that means you ain't in good condition if your body does that. If he works on those two things, I can see him beating Brock but in the end, neither of these guys stand a chance against Cain Velazquez, the true heir to the throne!