I've worked with some of the top designers in the world. I don't think that AI will beat them (for now), but the examples in his sample page[0] beat the junk that I've seen a lot of non-top-designers do.
As he states, he isn't trying to make stuff that doesn't "look like AI did it," he just wants to introduce variety, and has proposed a disciplined way to do that.
If people were not lazy enough to "introduce variety" to begin with, AI wouldn't have the slop reputation we know it to be today.
But any UX designer/engineer will tell you defaults are important. And on social media we're seeing a ton of "default". Which explains the disparity in reactions. "Default code" isn't bad in most contexts. "Default art" is bland by definition; pre-AI it wasn't exactly kosher to use stock art by itself either. It's designed as a placeholder.
can you please list some of the people you worked with? I really appreciate good design and am always looking for great artists that I don’t know about yet, thanks.