The hit sustained by Patrick Kane warranted a penalty, and the scrutiny that it got, and nobody is happy that he's going to be out of hockey for the next three months. The era where headhunters and goons deliberately injured scorers is long over, and the game isn't about that sort of thing anymore. This is the modern era of the NHL, which is a faster game played by skilled puck handlers. It's physical, but it isn't like we see chiclets on the ice every night.
I mean, the guy apologized. In the olden days, which nobody remembers, who cares what they did? These are millionaires who hop from team to team.
A fear of revenge would mean nobody would ever get on the ice. Come on.