It's Okay To Watch, But I've Seen Better Cartoon Versions

Rating: Null/10 (18 November 2017)

With the direction of the film being fumbled and script rewrites lacking cohesion; 'Justice League' pieced together a mess and made it into a watchable story.
What would have been a better plot? Get rid of Steppenwolf, introduce a resurrected Superman as Darkseid's new General. It would have brought back Superman without rushing the lazy plot device used in Justice League. Instead of battling a poor CGI of Steppenwolf, Batman's team could fight a helmeted stranger whose powers reveal (to great surprise) that it's actually Superman. Hell, it's happened before in the comics and the toons.
Get rid of the motherbox thing. A motherbox in the comics is just a transportation device. It's basically like someone gave up on writing something worthy of a 'Justice League' movie, and flipped a coin on how to unite the team. The biggest goof in 'Justice League' is that the boxes activated when Superman died - But no they didn't - Cyborg came to be because of an activated motherbox in the previous movie. Did they really just ignore that? Secondly - Batman seemed incredibly pessimistic about not only his ability, but the ability of Wonder Woman, Aquaman, Cyborg & The Flash to defeat Steppenwolf. That isn't Batman. Batman would have calculated a dozen different scenarios to win this fight. I've never known him to feel so helpless that he would imagine such a laughable idea as to activate one of the very motherboxes they were trying to keep away from the bad guy. So just remove them all together.
Introduce Darkseid. Why didn't they do this in the first place? I thought we sat through the crap-fest of 'Batman VS Superman' because it was leading to a Darkseid visit. Wasn't that the reasoning behind Batman's sudden psychic nightmares? In a version with Superman as the villain, he could have been brought back to his sense in the same way it happened in this film, but with the added bonus of - It doesn't matter because Darkseid is here.
How difficult is it to write a workable superhero movie? Especially with decades of story material to chose from?