I personaly REALLY desliked the first 18 min but the last 3 min were great in my opinion. I totally get why that guy was really pissed and that made it better for me. The fight was probably one-sided and they didnt show us much to emphasize that with those heavy hits and the music.
They probably did it on purpose in order to end the episode in a way that contrasts with the lighthearted tone of the moment they had at the wedding. I wouldn't be surprised if they show more at the beginning of the next episode.