Since Prince didn't get injured, I think it is just a video that went viral. If he had gotten injured, (1) I don't think we would have known about what happened and (2) it would have been a totally different situation.
If I was in the NYG public relations, since this situation did break out, I would at least educate the team on how hazing has become an issue in the public's eye. I don't think there should be any punishment to anyone. All we know is the 50 seconds on that vid. Maybe they dared Prince to get dunked in the water and he got money for it. Of course he wasn't happy, he got thrown into ice water.