I've seen some other commentary on the short/one-line paragraphs trend, and linking it to LLMs. I think it is just kind of a thing of the times—attention spans and all that.

I think it is more suited to the ways people consume text these days, kind of like how digital platforms moved to sans-serif fonts. Long dense paragraphs are fine in books and newspapers but hard to read and don't flow right on web browsers.

Books have also always had sections of short paragraphs for dialogue or pacing effect. I find myself breaking my own writing into more succinct paragraphs/thoughts that start to feel like jumbled run-on sentences without line breaks.