We can definitely debate the value of movies that were clearly aimed at an older audience rather than kids. I myself tend to think that the DC films are generally too narrow in focus. In fact, I'd say that the majority of DC's products aren't designed for kids and that's going to hurt them in the long run. What kid focused content do they make now? Super Hero Girls, and.....huh. I can't think of anything else. Justice League Action has been gone for years, all the DCU shows are aimed at adults, the CW is aimed at that young adult CW crowd, Young Justice went in with the excessive gore in season 3 so that's not kid appropriate anymore either, the comics are typically aimed at adults and aren't designed to entertain kids even if the content itself isn't stepping over a line. Their OGN's are designed for the young adult crowd. DC feels like they're just giving up on the demographic they should, arguably, be most invested in. I know they still make children's books but those seem few and far between and lack any kind of serious marketing.
I suppose part of it with the movies was WB wanting their films to feel differently than Marvel's, and offer an alternative to the MCU, which is generally family friendly and favors big set pieces and quips over any deeper discussions. And I think conceptually, exploring characters like Clark and Diana and Arthur in a grounded, real-world setting offers some fun dynamics. But it definitely hasn't worked out terribly well for them and the execution has been all over the place.
And I think it goes without saying that WB and Snyder were trying to divorce themselves from the Donner vision. And all I have to say on that is "Good, it should've been done long ago."
As for dropping Zod's death at the end of MoS....I think that's valid. That's how most action movies end, except the hero never feels bad about it and we did get at least that one anguished scream from Clark. Had this thread been explored in future movies we'd probably consider it a triumph of film making and the most in-depth exploration of Clark's morality ever put to cinema. But no, instead we get a crazy Batman story where nobody even realizes Bruce is the bad guy, and then a mess of a movie that tried to wrap up the whole tale while changing tone and becoming the Avengers.