I think this point about experience does get at something with AI slop. But there's at least another couple of things I would add: AI has no taste, nor does it have skin in the game.

I only use LLMs to generate code, but I'm sure it's the same for everything else. Taste is a difficult thing to pin down, but you know it when you see it. LLMs can regurgitate things it's seen that had good taste, but every now and then it will produce something with no taste. This shows that it, fundamentally, does not understand the difference.

The more important thing, though, is skin in the game. Quite simply, it does not care. It can't care. Having no taste is a big part of that, but it also won't have to deal with the consequences of its actions. People are quick to say this stuff is intelligent, but it's easy to sound intelligent when that's all you do. People have to actually be intelligent because they are going to feel the results of their actions later.