I think he has only had 2 bad games in his second stint this year. I haven't been disappointed with him even when he has been average because he is doing a magnificent job since coming in!
He knows his limitations, he doesn't try anything stupid, he knows his place and knows why he is there. He gives 110% every week, what more can you ask for in a 3rd string halfback?
He knows he wouldn't be here if Finch hadn't walked out, Mateo and Keating weren't injured, so he is doing his best in a bad situation and imo derserves plenty of praise.
Of course when Keating comes back he will go back to Wenty but he isn't stupid, he knows it so he is making the most of it while he can!