I saw this too. Don't normally watch things with people bashing other people, but must admit it was a killer.

The bare-chested geezer, saw the guys in ladies clothing and probably assumed they were a gay couple.

The funniest bit is where one of the guys in drag, calmly bends down and rummages through the fallen bodies to collect his hand bag!
I thought the guys in drag were actually pretty restrained. It could have been quite tempting in the heat of the moment, to have done some real damage.