I think for me it's just missing the "essence". Making a film is hard, but that labor with multiple people who are passionate about the project is just as important as the end result.

I've been trying to generate concept art for a game idea. I figure, I can't draw so why not have something else bring my vision to life. After dozens of failed attempts and burned tokens I decided to just hire someone. The experience was night and day. They provided thoughtful details to help tell a story in the image. They got to tell me what they added and why, etc. This isn't even their project but their passion for it showed in the end result.

These models are impressive, but I think people watch movies because of the essence as much as the movie itself.