Lemmy is overwhelmingly anti-AI; you've been around long enough that you really should have known what you were going to get for an answer before you asked this question.

That said, I'll offer a more objective take: Based purely on the example you gave, I'd have a difficult time parsing that passage, too, but the LLM summary is much more understandable. If you're needing to use an LLM to help understand the entire book, maybe it's not a good book for you; if you're using it for a paragraph here and there, the result is similar to what you've posted, and if you're taking that answer and returning to the original paragraph to gain a better understanding of the original meaning, rather than taking the LLM at face value, I don't see any harm in it. (Other than the environmental harm and societal impact, but that's outside the scope of this discussion, I suspect.)