If this keeps up we'll need to launch a new movie franchise titled "Petition V Petition: The Trial Of Zack Snyder". I'm sure it would earn a great deal of money, so someone might want to hop on that.
In reaction to the petition launched yesterday to boot Batman V Superman: Dawn of Justice director Zack Snyder off of Justice League and the DC cinematic universe in general, Marius Moller posted a new petition asking Warner Bros. to keep the director on. Moller brings up the fact that other directors are going to have their cracks at bringing these heroes to life in their own individual movies, before and after Justice League, so why not let him steer the ship overall.
At this point, there is no way they're going to boot Snyder. The film was successful in its two goals. It made tons of money, and it set the stage for Warner Bros. and DC's onslaught of new character based films for the foreseeable future. To remove him now would just be puzzling, and would prove detrimental to their film universe that they've worked so hard to get off the ground.
If you're interested in signing the more positive petition, you can do so here.