Another dumb course correction in response to a lot of outrage from a small group of detractors with loud voices. It dropped all of the plot threads from its predecessor, completely changed in tone, wrecked some of the more interesting and doubt-filled questions asked by the movie before it, was stupidly plotted with macguffins that made no sense and were never fully explained, and retconned the actual characters and how they behaved. In addition to that, the villain was poorly developed with little explanation as to why he was even there or what his plan was or how it was supposed to work. I truly felt the movie before it, widely reviled by fans, was far more interesting and brave, but all its merits were ignored and now we get this safe, mindless garbage.
Oh... wait a minute... I thought this was another Justice League thread! ;)