I don't see what a "street fight" has anything to do with it? Do they have knives? Guns?
I mean if a guy gets hip tossed and into an armbar, where Ronda then breaks your arm....what else are you going to do because it is a "street fight"? Pinch her thigh?
Agreed, in the limited amount of BJJ I've done, most of the self defense we learn is how to break peoples arms. Also; how to do it without them biting you in the calf...