He's not crap in absolute terms. He might not even be crap by overall PL standards. But he's nowhere near good enough to be in the squad, never mind the team, of a club challenging for the top four; or more often challenging for top place.
It's not being entitled, it's a matter of fact. City have been in the top for every season going back to 2011. We've qualified for the PL every season, and while Nunes might be OK against some European opponents and lower division teams in domestic cups, he's not good enough for the vast majority of league games, even as a squad player.
Several others could fall into the same category but Savinho is now showing some form and Doku can't be criticised because he's scored a couple against mid and lower table teams.
Our success since the takeover means good players aren't good enough, we need great players all over the pitch. Poor transfers have let us down.