Author here: Agreed & most parts of this particular project aren't really the best example. With other (newer) projects I embraced the LP style much more, and in fact by now really often first write the prose parts to get my head clear about a certain aspect and only then start writing code, e.g.

https://github.com/thi-ng/fabric/blob/master/fabric-facts/sr... https://github.com/thi-ng/geom/blob/develop/src/viz/core.org

As for the docstrings included in the core, this is largely to address complains from other users, who are used to have docs available in the REPL and I often don't have the resources/time to provide both org-mode and docstrings...