I've walked away from numerous fights. so yes, most bullys want to instigate a fight, and want the other person to throw the first punch. from the video, it seems this bully/attacker didn't have any other plans but to assault this kid. and if you don't know what you are doing, it's hard to get in a punch, when someone is wailing on your face...
i'm a little astonished that i'm having this conversation, and a little more shocked that someone would be talking like the kid deserved to get beat up because he didn't defend himself...but I guess I really shouldn't be, this is the internet.