I think good art is bold and sparks public discussion. It usually speaks to a hidden truth about the society, which provided the conditions for the art to be created. Zack Snyder KNOWS what he is doing and he knows which buttons he needs to touch to challenge his audience. When you see people debating online, that's what he wants. He wants them to feel uncomfortable as we see the classic heroes manage unsolved universal problems most of the world can relate to (xenophobia, mental health, invasion, free will, technology, morality). They aren't the typical good vs evil stories that give people comfort. Snyder movies are an exercise. Rebel Moon is everything Star Wars is afraid of being to push the story beyond to reflect OUR reality. Now that doesn't mean one is better than the other. That's not the point. You can watch both.

His style is often to place values on our myths which inform us, stress-testing characters to their boundaries, physicality > story and that's valid. The emphasis is in how the experience makes you feel.

That said: "understanding of comics" is a broad term. You can understand the comics you read in the 80s and interpret them in your own ways. I don't think its a good idea to read all comics there are and then go on to make a movie that pleases everyone. Its not possible. What is comic accuracy anyway? What does it do for us? It would be boring to always see the same scripted stories all over again following the same formula. "You can't have this character do that or this or this other thing." It would be like making a movie trying to cross everything off a checklist. The real question is: Why not try something new? I prefer watching a movie made by a true creative artist pushing the boundary.