See we (my style of ma) would never punch to the nose/upper lip because you can easily cut your hand on the teeth, last thing I want to do is mix blood with someone,
the back of the jaw will cause a knock out, or the neck where the clotted artery is, if you pinch the clotted artery shut you'll make the guy drop right then and there.
Being in a fight like that with a kid I'd rather just block his punches and throw the guy down and submit him. Judo and Jujitsu FTW!
It's one of those things man, if you don't fully understand what you're looking at it's hard to see the cons. IMO this whole fight was bad other then the spraw, but even then the guy only followed up with a stupid suplex like move that went no where. He easily had his back and could have had an easy choke out or more basic throw that wouldn't have put him in a bad position like that suplex did.
Maybe you feel I'm pulling shit out my ass but after X many years of martial arts ranging from basic foot work with boxing to jujitsu, I can see a fight like this one and say boy that sure did suck.