Pretty much, not his fault of course but if he doesn't perform it's not the fans fault either and they're entitled to vent their feelings.
He's a kid, who basically should be nowhere near the 1st team, no surprise he looks out of his depth really his level is 2nd division (and he wasn't even really good enough for that it seems).
I'd spend my time feeling sorry for him but he's probably earning 15-20k a week, so I'll save my sympathies for the homeless and hungry instead.