Snyder is an established director who has his own style.
Why do people suddenly think it'll change? Why do people think that EVERY MOVIE?
It's HIS style, he's not going to do anything different than he's always done, and you either accept it or you don't. It's solidified. It's how he envisions things.
No amount of cajoling or talking with Johns is going to alter that.
Do I like his style? Not really. I think it's visually striking, but everything built in and around the visuals is offal, and he's too in love with making homages to classics instead of crafting his own classical scenes.