No more bitch shit than not turning around when someone is talking shit to you for almost a minute.
What are you suppose to do if someone won't turn and face you?
Plus its not like the taller guy was apologizing or defusing the situation, he was being passive-aggressive while trying to walk away. Either defuse the situation or fight.
If somebody won't turn and face me, I drop it...period. If they're a bitch, they're a bitch. If you knock somebody down from behind, you're more of a bitch than them for walking away. In my opinion, taller dude was being a man about his. Some may say he's a bitch, but I respect folks for not lowering themselves to that level.
I don't care if the dude didn't try to squash shit, the minute he turned his back and walked away it was over. That's how I handle shit anyway. Never kick a man when he's down, never hit a man from behind. That's how we were raised in the 80's.