First: This joke has been made multiple times with much funnier existing pictures.

If you don’t like the picture, just say that. It doesn’t matter how it was made.

Second: You could have easily used a DOOM poster or the like for a very similar experience.

Yes. And they did this, which gave a very similar experience to the DOOM poster.

And last but not least: AI slop is environmentally poisonous,

That’s a myth.

bad-kind-of-weird, ugly shit

Again, if you personally don’t like how it looks, you can say that. I, personally, think it looks just fine, and I’ve seen plenty of AI art I really like. Also, there’s plenty of AI art that people can’t consistently recognize as AI art, so unless you think all the artists who paint in the styles shown there are bad artists, I think it’s safe to say not all AI art is bad.