I'm sure she thinks she's not talking about all tech people, but she began the article with an anecdote about an acquaintance of hers, describing how it was "mortifying" to listen to him talk about his ideas and directly contrasting him with a "regular human" (who of course would be familiar with Swiss linguist Ferdinand de Saussure).

I don't want to overindex on the one anecdote, because I recognize this is a pretty hostile interpretation, and I could just as easily read it as playful ribbing if the rest of the article were consistent with that perspective. It's kinda not, though.

I assume that acquaintance was in the narrow subset of techies that she's talking about.