the dumbest part of this storyline is how bad or basic most of batman's plans were. His plan to kill superman is to use kryptonite. Red kryptonite, if you want to be pedantic about it, but still just that. Yeah, you really needed to be the world's greatest detective to figure that one out. Some of it isn't even particularly specialized, like Wonder Woman's is just nanomachines that trap her in a hallucination. You could use that against anyone. And Aquaman's is so lazy that he's just using Scarecrow's normal fear toxin against him, like Scarecrow would do if he fought Aquaman.
Basically, these are all just basic, normal villain plans that usually fail but this time they work because they're Batman's and they need to pretend Batman is so impossibly smart only he could come up with these plans that uniquely work against the JL.