Interesting how the article does not “delve” into the use of the emdash, considering its own excessive use of it.

There is a separate manual for dashes: https://type.today/en/journal/dash

Reference to the emdash qua LLM-ism is now more of a cliche than the actual LLM use thereof. What grates about AI slop is the actual prose, and the writing here is just fine, frankly. Most importantly, it's not trying to pad out insignificant points, sound like marketing copy, etc.