Completely disagree. Inability to handle specific math or CS is a matter of training and experience not reasoning and intelligence. The barista is quite capable at reasoning and learning feats the LLMs aren't close to

Yeah, there appears to be this idea that "being smart" is the same thing as "knowing facts", which I don't think is realistic.

I know plenty of people who are considerably smarter than me, but don't know nearly as much as I do about computer science or obscure 90's video game trivia. Just because I know more facts than they do (at least in this very limited scope) doesn't mean that they're less capable of learning than I am.

As you said, a barista is very likely able to reason about and learn new things, which is not something an LLM can really do.