So, the big guy on the left had "Ruby" in a secure hold, but seconds later, somebody else was riding him. What happened to the first guy? "Ruby" threw him off, did he? And we're talking about a gap here of just 4 seconds.
So, how do we really account for this? Maybe they did multiple takes. And when they put together the "live" footage, maybe they mixed and mingled clips from the multiple takes until they had something which gave it the right thrill. But, there is nothing real about any of it. Not a bit of it. It was pure theater.