I have seen data from an AI call center that shows 70% of users never suspected they spoke to an AI

Why would they? Humans running call centers have been running on less than GPT level scripts for ages

Isn't the idea of a Turing test whether someone (meaningfully knowledgeable about such things) can determine if they are talking to a machine, not can the machine fool some of the people some of the time? ELIZA passed the latter bar back in the 1960's ... a pretty low bar.