Thanks for the link! I think this is tightly connected to Donald Knuth's Literate programming paradigm, i.e. there are also platforms which generate beautiful reports out of the embedded comments in your traditional source codes. However, you won't get the interactivity for free.

I personally prefer Jupyter because it seperates the programming language (Python, R, C++, etc.) from the representation (for instance Web) and still allows interactivity for a certain degree (given a backend running the source code).