Nonsense. Cut the bullshit.
Muhfukas just wanna hate & complain about SOMETHING.
Can't say much negative aboout the movie itself................... so now they running around complaining about the"length".
And I bet these same folks who complain about the
4 hour length of Zach Snyder's Justice League... are the same folks who sat & watched all
5 hours AND 42 minutes of the Avengers (Infinity War & Endgame)............ and NEVER ONCE thought it was too long to to be good.
FOH.
Now if you say.. "But the Avengers were two separate movies".... then you should've hit the pause button during ZS Justice League..... and watched half the JL movie on one day.... and then watched the other half on a different day..... to get the same "movie experience "as watching 2 different Avengers movies.

Simple as that.
Zach Snyder even broke it up into separate "chapters" to make it easy to do something like that.
He saw the Haters coming to bitch about the "runtime" from a mile away... and provided a solution BEFORE they could start complaining.
That shit was brilliant.