why people dosen't think that cotto's chin was ruined by plaster?

[goza]

if plaster was used by margarito margarito would have ko'd cotto in the 3rd, i think cotto just used the wrong gameplan thats why he lost.

if plaster wasn't used by margarito,
he would have gonna KTFO or lose by ud

[Leakbeak]

It was never any good in first place, and now it is kinda ruined. That stoppage was less about his chin than his previous KD's though so who knows?

[cyutetrick]

if plaster wasn't used by margarito,
he would have gonna KTFO or lose by ud

and the evidence there is where???? face it honestly i think cotto beats margarito but not by fighting him the way he fought him. cotto has never been known for his chin and to last 11 rounds against a guy using plaster is to have a pretty good chin, margarito just wanted it more and cotto did not fight to win.