Personally, i think his confidence is just low right now. Hes disappointed he got injured when his game was coming on, hes disappointed hes not performing how the organization needs him to, and hes disappointed hes on the 4th line with dumb and dumber. Thatll kill anyones game IMHO.
If he plays with bert n Pasha on the top line for more than 3 games and produces nothing, then we can worry. But until hes given the top 6 role he knows and has thrived in, while being injury free and playing with the worlds best player, i wont rule him out.