Wait, why do we want offline docs? Good search is important, but there have not been many times in my last 10 years that I have needed something to be offline.
I imagine this is useful for a lot of people around the globe. I don’t use the broader internet a whole lot when I work, but I do use the official documentation pages when I forget how basic things, partly because my memory isn’t great but also because I work on multiple languages and don’t always remember how they each do specific things like splitting strings, reducing arrays or whatever. If I couldn’t just go to the official language documentation’s I’d need offline versions.
Online docs gets in the way if I'm working on something and just want quick info. Being able to always read it even without a connection is useful as well.