Just because someone is not hurt after an assault does not mean there was no intent to injure the person. I deal with assaults all of the time in my job. Thankfully, most of the people have no injuries, or very minor ones. That doesn't mean that the perpetrator was trying to hold back.
You have a point, but I think for someone like Dennard, he would have caused some injuries if that was his goal. Maybe not depending on how many drinks he'd had. I don't know...not really worth thinking much about.
I'd put Dennard at the end of round 5 now. Wild guess. Hope he can take his lumps, put this behind him and seize the opportunity.