You could, but then he's training and attending every game at multiple levels. He's also got to go to school. Baring in mind the first team is a toxic mess, you can see why it might get too much.
Saying that it is very hard to watch last nights game and not think he is good enough, or nearly good enough. There were times he switched off, times the defenses just backed off him, but when he was in the zone he looked special. Defenders in the PL are going to be another level and they aren't just going to let him dance around them. But i would love to see how he adapted to play a team like Man U.