I'm not too sure I'd agree with you on that. Easy to take that opinion from how he left Hamburg, but the fact he mentions a couple of times in that interview about things like 'patience', 'new to to the team and playing with others with over 200 games', and the also the fact that he himself recognises he won't be fully firing until next season.
Strikes me as a fiercely ambitious fella who will go when the right time comes, but he also recognises the opportunities he's had through football. How many of us would turn down the opportunity to play in potentially championship winning international sides for one that may not even get to those same championships.