It's because Pittsburghers always have an excuse for Crosby. There is always a reason why he does stuff and none of it is his fault. If he wants to fight someone drop the gloves, you've seen enough old Pens games to know that Lemuiex did it when he had enough.
Honestly I was just busting your balls about jumping in from behind in the game in Philly. I've watched enough hockey to know it happens every game. It's fun to talk shit about Crosby to any Pens fans because it is almost like you are disrespecting their mother.
If most of the league does that, they are suspended, but since it is Crosby, it is overlooked. It isn't like it was a stray punch...he wound up twice and hit him in the balls.