I saw the movie for a second time yesterday. I enjoyed it just as much as the first time, however the second time around, I felt, Cavill needed way more screen time.
I noticed how just a few tweaks of scenes were cut out of the film that we saw in trailers, (that missing shot of Central City before Bruce drives with Barry in his car) I was really conscious of it this time. Warner Bros were intentionally trying to make it shorter...stupidly.
The final battle is much like The Avengers. In The Avengers, the final battle goes on for quite a while, just when you were worried it was about to end, you would get more. Justice League's final battle is too short. It needed to be longer, in order to be more epic.
I realize right after Superman's cue moment, it was only a few minutes before the final battle ends.
If you highlight all of Superman's moments in the final battle, it's simply, Superman comes back and punches Steppenwolf, flies off to save civilians, flies back "Is this guy still bothering you" and hits Steppenwolf again, then splits the mother boxes apart from each other with Cyborg...then uses freeze breath on Steppenwolf...and then it's pretty much over.
All of that happened in matter of 5 minutes or less. I think each of these scenes had the potential to make Superman shine in the DCEU just as much as Wonder Woman has, and it did to an extent, but there wasn't enough screen time. Maybe seeing him battle and punching parademons would have helped. An interaction with Aquaman maybe too, as he didn't really have one moment of dialogue with him. They even could have added a scene how Clark was going to get his Clark Kent identity back. The conclusion/epilogue could have been longer. Maybe a scene where we see how the world reacts to Superman's return...he just came back from the dead...come on.
All of Superman's scenes in the final battle were great moments, but very limited. I think if there were more, then it would have given Warner Bros a hint, "Hey, these people actually like Superman, lets give him his own solo movie." Problem is, they are f***ing morons.