Why does anyone serious about art want to make art with AI?

A large part of the magic of art is the human choices that go into it.

Prompting an AI and then filtering the results is a "human choice".

Two choices - one of prompt, one of the result, versus hundreds or thousands from the subject and composition, through the medium, to every single brushstroke, where one may have a significant meaning. To be improved upon when your skill improves as well.

This is more akin to going to a supermarket and buying peanut butter (prompt: peanut butter, filter by brand/price/taste). The product may be tasty and enjoyable but I am not impressed by that.