The good parts
Batman’s thinking made sense. Some people think Batman having plans to take out the justice league is a bad plot point, I disagree. It not like major Superheroes haven’t gone rogue before, either by mode control or other reasons. It would be stupid for him not to have contingencies.
Also the keeping them secret also makes sense. A lot of them only work if Batman was somehow able to get the jump on certain heroes(Flash for example).
Bad parts
The Wonder Woman plan makes no sense. Part of me think it was Waid’s way of throwing his hands in the air and admitting that their is no convincing way that Batman could take out Diana. She’s way stronger and faster then him. Her fighting skill on his level, and she doesn’t have any obvious exploitable weaknesses like Superman. In fact I think Wonderwoman is the League member most able to counter Batman.