That's entirely fair. It definitely feels like some sort of threshold has been crossed, and the only term we have for this performance axis is "the Turing test"

That's entirely fair. It definitely feels like some sort of threshold has been crossed, and the only term we have for this performance axis is "the Turing test", but you're absolutely right that LLMs are very far from perfect. It feels more like the beginning of a journey rather than the end. We should probably get in the habit of treating Turing Test performance as more like a continuous scale rather than a pass/fail condition.