As I've always said, you don't have to be smart to ride a motorbike. Sounds like the kid should have died out their on the tarmac. I'm shocked with so much injury he is still alive at all! If your not smart enough to wear a helmet (how do people see without them?) and you drink right before riding, you pretty much deserve to die if you crash.
Even the best, most well equipped riders, still suffer catastrophic injury. Heck, I have friends who have seen it all. Guys in full leathers, chest/back protectors, full helmet, everything and they still die from a small crash that didn't even break a bone! I lost a friend from a crash at a track where his head just tapped the tarmac and that was it, lights out. So sure, riding gear might have saved this kid, but just because your well equipped, doesn't mean your invincible.
ATGATT is great, but its not a cure for the ever so common poor rider...