To some extent I agree, but the interesting thing about batman is that the take the general audience seems to be resonating with is the grounded version. There have been so many iterations of the character now, I do think people will roll there eyes if they announce another batman like another user had mentioned.
I saw that from my own family members that don't care about this stuff when Pattinson was announced. So you have to invest a lot to establish this new batman and it actually needs to be good which is easier said then done. The flash was supposed to be amazing and to me it was ok, but I found the batman stuff the worst part of the movie.
As the batverse gets more established the argument grows stronger to hold off on a DCU batman until Reeves decides he is done. I mean, look at the reactions to the penguin, it's like lightning in a bottle to get great reviews and have high ratings. Why throw that away chasing something that doesn't actually exist right now. Creature commandos will be the first dcu product and that's a niche cartoon.
On a personal level, I'm happy the joker is coming out and will be done so they can turn there attention to Matt Reeves batman.