What good is it if he follows tactical instructions but gets ran past like a training cone and only passes the ball backwards?
Like I get it, people want him to also do well as he's a genuine and very likeable person, but he's the slowest and most 1footed player maybe in the league, genuinely hasn't kicked a ball with his right, makes him predictable, and on top of that he's incredibly slow.
Dibling has barely played (so he's "not ready", the self-fulfilling prophecy once again) and has done better or at least not worse than ExPeRiEnCeD McNeil, who follows instructions but does nothing with them in 99% of the time.
Would it be the same that he's poor if Barry (and Beto I think?) managed to finish those easy chances he laid on for them? He'd have equalled McNeil's assists in minutes on the pitch, then what's the justification?
Moyes doesn't like and has never liked young players and that's undeniable at this point, and any other manager would be playing Dibling a lot more, or move McNeil away from the wing where his weaknesses are even more on display.
I agree that McNeil has not put instructions into practice a lot this season (so, too, has Dibling tbf) but yesterday was not one of those days.
And I'd pick Dibling against Leeds if Ndiaye isn't back. Moyes won't for the reasons you outlined.