I'm not saying it won't; my criticism of him is that he is either on fire or completely anonymous.
You say the team has been awful this year - he's been part of that team, played nearly every minute, and has contributed to that awfulness.
21 isn't the same as being a 16 year old academy player - it's fairly young, yes, but it's no catch all excuse for his inconsistency.
I just want to see him do what he did tonight in the Premier League, and I'm not prepared to make excuses for him, as if he can do it tonight, he can do it in the league too.