The article does a good job of explaining why the list is small - and in my opinion quite useful in that regard. Agree that it would be interesting to know what perceived costs/benefits of various options considered were. I suspect accidents of history, before the need for a list like this was recognized, play a large part.
When I started there in 2013 the philosophy was that they'd help you build your service in any language. Funny the difference a decade makes, I suppose.
