Interesting, earlier today the page didn't truncate the paragraphs, a minute a go it did, and now it doesn't again, all in the same browser. I haven't found a pattern yet.
Edit: looks like the author just fixed it while I was looking.
Idk what they're using for serving, but it's truncated in the raw HTML, not just the presentation layer. So probably a bug on the backend somewhere? The linked github repo doesn't seem to have the contents of the post.