That’s just it, Warner bros. wasnt partially to blame, it was 100% their fault. They were so obsessed with competing with Marvel that they didnt even stop to look at what made Marvel so successful in the first place. Patience is not in WB’s vocabulary. I’m glad Snyder did ignore them and made the movie he wanted to make because we obviously wouldn’t have his cut of Justice league (which is liked by the majority of fans and critics alike). In the end if they just would’ve stuck with Snyder then there’s no doubt his film would’ve made more money than the abomination that was Whedon’s cut.
P.S. I don’t know where you’ve been but WB has a history of making just as many bad DC movies as good ones, especially before the Snyderverse/DCEU.
Superman 3 & 4, Superman returns, Jonah Hex, Green lantern, Catwoman, Supergirl, Constantine, Steel, etc.