The author has succeeded only in arguing one meaningless image factory produces images they find more aesthetically pleasing than another meaningless image factory. The framing implies they understand little of art at all; beyond gurgling and clapping like a child at the colors and shapes they find most stimulating.
Found the zealot. Is true art a hermetic endeavour which must be gate-kept to seal out the lesser folk? If so, then why lambast the lesser folk over their ignorance of the secret knowledge?
It is also not inventive. It's rehashing and regurgitating. That point is a bit muddy, because many humans do that too. But ask a generative "AI" to make something better than what it has learned from and new, and you will probably be disappointed.
I am not an art buff, but I can sort of see, why one wouldn't consider it proper art.