Why? Despite some of his witty remarks ("I have only proved it correct, not tried it" and others) he seems to be a pretty hands on guy. The lecture I attended was more of a workshop where he was showing his MMIX tools in a live coding session. Everyone got an MMIX assembly cheat sheet and he hacked everything himself in Emacs.
You'd have thought a "hands-on" guy would have been capable of using the keyboard and typing his own ChatGPT prompts rather than asking a grad student to do it! He could then have tried to ask some follow-up questions and begun to do a more meaningful evaluation than seeing if he can come up with a 10 word "gotcha" prompt.
Evidentially so, but bizarre that someone like that never had the curiosity to try it at all before last month, and then gives it such a perfunctory test!
Imagine if an alien visitor was captured, and it took David Attenborough 6 months to show any interest and send his intern off to check it out.