The practical problem is that models have very limited prompt adherence. The level of detail you can specify in scene design is very crude. So you can get the slop effect where there's a lot of in-fill pastiche detail, but you could never create something like this, where all of the incidental objects are specifically included to enforce the message.
https://en.wikipedia.org/wiki/The_Awakening_Conscience
It's basically the professional version of the "Draw me a pelican on a bicycle" problem.
There are situations where you want that level of creative control, and current image generators don't get close to it.
And without it you can't get to the meta-creativity level where you're creating a new aesthetic that's a cultural landmark - which is what the famous artists did, and still do.