I see no problem with his comment as he is simply showing ambition. It was a loan, it was never permanent, it's sole purpose was to for him to improve his level and if he believes he is ready for a higher level loan than that's good on him.I mean he really hasn't become more humble he didn't had the best season at Twente but he said he was ready to go to a higher level when he really wasn't playing all that well. Pissed off alot of Twente fans with that comment.
Personally, I think his mentality is elite, he even mentioned that if he was sold in the future that he would fight for city to buy him back (indicating he would fight to improve to a level that City would want him). That's a mentality that alot of players need to have on loan, and I personally would love if he nails this loan move and comes back as a squad player, however unlikely that may be.