Earlier quoted context omitted.
I can see using these video generators to create video storyboards. Especially if you can drop in a scribbled sketch and a prompt for each tile.
That sounds actively harmful. Often we want story boards to be less specific so as not to have some non artist decision maker ask why it doesn't look like the storyboard. And when we want it to match exactly in an animatic or whatever, it needs to be far more precise than this, matching real locations etc.
I've worked with other developers that want to build high fidelity wire frames, sometimes in the actual UI framework, probably because they can (and it's "easy"). I always push back against that, in favor of using whiteboard or Sharpies. The low-fidelity brings better feedback and discussion: focused on layout and flow, not spacing and colors. Psychologically it also feels temporary, giving permission for others to suggest a completely different approach without thinking they're tossing out more than a few minutes of work.
I think in the artistic context it extends further, too: if you show something too detailed it can anchor it in people's minds and stifle their creativity. Most people experience this in an ironically similar way: consider how you picture the characters of a book differently depending on if you watched the movie first or not.