Why is Berto getting so much heat for holding?

[Taeth]

Mosley/Margarito fight is a dumb comparison IMO, Margarito was the bigger man, and Mosley didn't hold for most of the fight, and with that said, Mosley banged out a TKO, Berto never even put a dent on Urango, say what you will but Berto's power is seriously overrated, his shots look big, but rarely hurt a REAL opponent seriously

Margarito and MOsley weighed the same amount, Margarito was only taller that night, and certainly not stronger. I think Mosley was smart in doing it, I just don't see why Berto should be criticized except by the fact that like somebody said that he could have done anything against Urango he wanted to.

How come Berto hurt Collazo while MOsley didn't? How come he stopped David Estrada when Mosley didn't? He's foughten guys with great chins of late.