Lucic would have been a poor role model for an anti-bullying cause whether he skated through the handshake line without incident or not. But I think there's a difference between being a role model for something and simply speaking out against something. Lucic gets paid good money to intimidate other people as part of his job, that doesn't mean he can't speak out against kids bullying each other in the school yard. There's not even remotely a comparison to be made between the two.
Well your "figuratively off-the-ice" is disputed by Lucic himself (who suggested Weise should have left it "on the ice"), and I don't particularly agree with it either. I think your description of what the handshake is supposed to be is a pretty idealistic one, but not particularly grounded in reality. I'm not condoning what Lucic said and I don't much care for it, but I don't hold the handshake line to be as sacred and inviolable as you seem to either.