Since the Crosby era began, could you please name a player who won the cup, was a key member of the team and was a (rumoured) heavy drinker?
Kane is a good player, a very talented one, but that doesn't mean he is a 'hard worker'. To clarify, every professional player is a hard worker, you can't not be. But they are not all equal. Kane is talented but i have never heard anything good about his work ethic (c.f. Crosby and Toews).
If i am trading my future for a star, i want a star who brings more than just on-ice. Leino said our locker room was ######, Pommers said our locker room was ######, Regehr said our locker room was ######. Kane isn't a player who would change that in anyway