The problem with DC and the DCEU is their two leading guys have to basically be gods. Batman, despite just being an a dude, can never be outsmarted, never be surprised, never beaten permanently, and always has to have a Oceans 11 style master plan going on the entire time, and because he's always the writer's favorite character he always has to be the coolest. He's basically Freakazoid, where his special power is the writers are on his payroll.
Superman punches God. Like literally, its been established Superman is strong enough to move the Milky Way, he can move faster than light and time, he beat up God God, and Death itself admits he can't kill Superman. Characters like that its really hard to have a meaningful story. There was one story where Superman admitted everything, all of the fights, the villains, the disasters, the losses and death, he allowed all of it to happen to retain his humanity and he was never in danger, and he could beat every villain in the known Universe at the same time instantly and could bring the dead back to life and basically transcend into God, and was just choosing not to.
And how do you have a character like that not just come off as some cruel Lovecraftian God that's just toying with humanity for shits and giggles.