I'll call it "AI" when prompt engineering ceases to be a thing.
The real problem is that we insisted on giving a discipline that is far more art than science the title "engineering".
I don't know what "prompt engineers" think they're "engineering." There's nothing of the sort remotely happening here. This is just random uninformed actions being tested against a weak fitness function. The results are effectively meaningless in any broader context.
I interpreted the original comment to mean "I won't consider ChatGPT an artificial intelligence until we don't need to prompt engineer." If that was the intended meaning, I just wanted to highlight that we do "prompt engineer" humans while also considering them "intelligent."