It also disproportionately flags the work of neurodivergent students, to add a bonus reason that these detectors are a dogshit idea.

Oh yeah it's an issue, but none of that is on OpenAI. There's no admission here. It's a statement from an authority to shut up the idiots, like a map maker saying earth is a sphere, something we already know but somehow it's still believed by many.

I think the people who say stuff like this probably haven’t been interacting with one in a while, or maybe just didn’t know how to prompt it.

As a professor that has to grade a lot of papers, I'm tempted to agree with this. But we probably need some well-conducted research to determine if this conventional wisdom is actually correct.

Have you seen AI in recent months...? It's really not that cut and dry anymore. Might see some hiccups here and there but nowhere near the "uncanny valley of gibberish" levels you describe, at least not on the good ones

This feels a little like people who think they can always spot plastic surgery, when really they can just always spot the bad-okay cases, but completely miss the good outcomes of plastic surgery