One of the first things Disney did when they acquired Marvel was move Feige and Marvel Studios out from under control of the comics people who were reportedly notorious for interfering. You need DC films run by film makers who care for and understand DC comics, not comic people who don’t know filmmaking. Also, why change now? After BvS, there was a course correction that has given us successful Wonder Woman, Aquaman, and Shazam movies. With a future slate this is looking pretty good right now. They tried to correct JL midstream, which was a mistake. They should have let Snyder finish his version, or delayed and let someone try. Either way. But trying what the did costs too much and resulted in a entertaining (to me) but underwhelming picture.