I myself include code in my own papers when it's useful. As the author of this paper mentioned (and it's something I'm a bit embarassed I missed), the asymptotics of this new algorithm do not compete with the usual O(n^3) algorithm, so it's not clear to me that having Python code would benefit anyone. Of course you never know, though I think the underlying concepts in their formula are significantly more difficult to learn than the notation itself, so the code also wouldn't help very much with understanding the formula.
Anyway, given that you're saying I'm in an ivory tower, doesn't that give me some authority to explain why the choice to not include code has nothing to do with it being an "insult" to the community or it "spoiling" the paper with "disgustingly usable code"?