In Elon Musk's lingo, reading your article added to my unregrettable Medium minutes. Clearly explained and consice. Having spent most of my time doing data engineering, I hadn't thought of the backend as having these two facets BSF and BFD.

And, on a separate note, I think SurrealDB is out of beta now. I'm going to give it a shot one of these weekends and will post about it.