I am the first to say theres variations between Reeves Superman and Knightmare Superman you could do,but the character had so many interpretations over the years that people think a dark,edgy,"too deep for you" Superman is the way to go.
okay, but your post wasn't that. The post you responded to quoted the writer talking about using Superman to comment on American interventionism. In the scene in question, Superman isn't the evil Knightmare Superman who does Evil Things; he's doing his standard Superman routine of saving people in need. He simply does so outside of America. There's nothing edgy about wanting to use that fact to comment on American interventionism; it's pretty standard storytelling.
The character is not Homelander or Tony Stark.
What equivalency are you trying to establish between Tony Stark and Homelander?
In any case, you seem to be taking issue, like many do, with taking an existing character and telling a different kind of story with them. Something that isn't standard fare. I find this mindset, fairly common in comics circles, to be very disappointing, if not reprehensible.
Comicbook characters, with their superpowers and fantastical realities, are ripe for stories using allegories, parallels and other figurative devices to say something about the real world. In the case of Superman, I would understand people taking umbrage with a movie not sticking to the character's roots if said movie was the first movie made on him. But Man of Steel or BvS weren't the first. Before Man of Steel, there had already been five live-action Superman movies, including one released not even ten years before. After so many movies, at some point, it's time to tell a different story by taking the character in a new direction.
But like I said, Snyder was not able to fully grasp the ideas he was playing with. It's a shame.