Nitpick, complain, whine, whinge… throw toys out of the pram! However you want to word it, there’s an awful lot of it going on.
It comes down to people complaining that there is a bad thing in the Sequel Trilogy, and you hold up the mirror and say well look, that same bad thing happened in the Original Trilogy.
Nitpick would be like “why are the bombs dropping if there’s no gravity”. The complaint about Luke’s characterization is not a nitpick at all.