It's less about the punctuation used, and more about the necessity of the punctuation used.
In the sentence you provided, you make a series of points, link them together, and provide examples. If not an em dash, you would have required some other form of punctuation to communicate the same meaning
The LLM, in comparison, communicated a single point with a similar amount of punctuation. If not an em dash- it could have used no punctuation at all.
Em dashes are fine. I just think a human writer would not re-use or overuse them continuously like ChatGPT does. It feels natural to keep sentence structures varied (and I think it's something they teach in English comp)
You're absolutely right! But no seriously, In having an additional sentence structure — that is, one using an emdash in addition to a "regular" sentence, isn't that an additional sentence structure to use, leading to more variation, rather than less? (I'd "delve" into the subject but I don't have more to say.)
In the sentence you provided, you make a series of points, link them together, and provide examples. If not an em dash, you would have required some other form of punctuation to communicate the same meaning
The LLM, in comparison, communicated a single point with a similar amount of punctuation. If not an em dash- it could have used no punctuation at all.