As for Matt Reeves, I have resolved unless it comes from Matt himself, everything is heresay and take it with a grain of salt.
But with Snyder, I was geniuenly interested in his ideas and he brought some good concepts to the DCEU (Polynesian Aquaman, a Batman who has experience and been through some stuff before he meets Superman, a Wonder Woman who's been around since World War 1, among other), it was always the execution that was lackluster and disappointing. That being said, I would be disappointed if he killed Dick before he even showed his face in the DCEU, so I am glad that wasn't in continuity.