Earlier quoted context omitted.
Clippy was a laughing stock and target of derisive comedy for years. It has such bad brand recognition that nobody should be surprised that they aren’t using it.
I think that is what makes it a humor goldmine. Clippy was useless. But attaching a Clippy to a language model? Still nominally useless, but mindfully so! It would be self-deprecating (un-deprecated???) humor for Microsoft, which would take the edge off of the often pushy and tone-deaf corporate look they continually and crassly paint themselves into by default. And actually potentially useful as a branding touchston…
The pre-clippy natural language help in MS word worked fine too. Chatbot interfaces that work fine are nothing new, it's just very few programs are complex and open-ended enough for them to be a reasonable UI -- but a full-featured word processor probably is