I don't know what the deal with that teaser was, but I watched all the eposides and it never came up. Nothing on youtube either. Since Dana loves to show the drama the only thing I can guess is that there may be some legal proceedings or something that prevents them from showing it. Outside the cage, throwing that punch is battery.
It's not Dana's footage to edit. It's Spike tv's. I'm sure he has some influence over it but not as much as you'd think.