Why is it a bite? I'm not baiting.
The main storyline is hampered by the many subplots which distract from it, causing confusion and a poor flow. Many of these subplots are left unexplained, and while they may be explained in sequels down the line, it only detracts from the main plot of the film itself.
The film's entire timeline is oddly structured, with the only real action sequences seen at the end of the film, causing it to feel unbalanced. The final fight with Doomsday came far too soon after the Batman vs Superman battle, a little breathing space would have helped with the balance. That breathing space could have been used to make the coming together of the trinity and Doomsday feel more natural and less clunky.
The film loses focus at many points, choosing to shoehorn in dream sequences which serve no real purpose, which again, provides only a distraction from the main storyline. The loss of focus also upsets the pacing and interrupts the drive of the main story.
A lot of things are left unexplained, and switching out some of the unnecessary scenes for some which would provide an explanation for some of the more murky parts of the film would help to make the film feel more whole. It also would have made the film more accessible for the average moviegoer, who, let's not forget, are worth far much more to the company than comic book fanatics.
I have only seen the film once, and that was a while ago now, so there are almost certainly other things I've forgotten about, and maybe even things that I missed that would have made for a better viewing. However, because I hated it, I'm in no rush to see it again. I'll give it a second chance when the Blu Ray comes out.