IMO last season he really had a slump spring after the WJC, whereas this year I think he's even improved slightly. He did have a bit of a quiet period (as did the rest of his line), but what I mean is that he's actually been more active in his own end and on the forecheck instead of just coasting around.
His coach trusts him too, as he's been put on the ice late in the game even when defending a lead nevermind 3-on-3 where actually staying with your man is so important. This was hardly fathomable last year, and he had a more sheltered role (out of pure necessity since he was such a black hole without the puck). Has been throwing his weight around rather enthusiastically as well.