Coming from a maths background, it's not expository. It's pompous. Referring to the original article, btw.

Coming from the Internet, how about you both back up your statement with some rationale?

I really don't see how you can think this is pompous or terse after reading math textbooks.

Maths textbooks contain real mathematics and are aimed at mathematicians or mathematics students.

This is about a blockchain, and is presented using Haskell and over-the-top Haskell pseudo-category-theory.. it just doesn't compute for me.