Whoever this we is may not need a Batman movie, but WB feels they need one and I would go see it. The disaster wasn't the DCEU movies per say. The disaster was giving Zack Snyder the keys to the Cadillac.
Everything he didn't have a direct involvement in has been a hit. Made a lot of money for the money spent to make it. Even Suicide Squad. Now that Snyder has no direct involvement I think The Batman will
also do well. Also looking forward to Shazam!, Joker, Wonder Woman 1984, Birds of Prey (and the Fantabulous Emancipation of One Harely Quinn), The Suicide Squad, and Supergirl.