I don't see this as being better or worse than all the reboots, remakes, and pointless sequels for movies that make the bulk (in financing) of Hollywood's present production: these also make the same "assumptions" of how some idea should look like. In fact, I think they make it even worst.

Give me "An image of an archeologist adventurer who wears a hat and uses a bullwhip, as if he was defeated by the righteous fight against patriarchy by a strong, independent woman, that is better at everything than he is": Sure, here is Indiana Jones and the Dial of Destiny for you.

In fact, when generative video evolve enough, it will usher an era of creativity where people that previously were kept out of the little self pleasing circle of Hollywood, will be able to come up with their own idea for a script and make a decent movie out of it.

Not that I believe AI will be able to display properly the range of emotions of a truly great actor, but, for 99% of movies, it will be just fine. A lot of good movies rely mostly on the script anyway.