I think the ref gave him some leeway on the count because Cintron seemed pretty clear headed as he was arguing that it was a head butt, and popped up pretty fast. I've seen plenty of times when it seemed a ref expected a fighter to be fully erect, to be considered beating the count. Although maybe that explains why those instances are often called TKOs instead of KOs, because the fighter technically beat the count but the ref deemed them too shaky to continue?