He wrote Requests. His many other side projects are not nearly adopted, supported, or maintained like Requests. This project will likely be the same as the vast majority of those other side projects.
This cult of personality stuff is really bizarre though. I actually feel bad for Kenneth in this regard, since he'll never know if what he makes is actually any good, since his followers will tell him it's the greatest thing since sliced bread regardless. I have legitimate support concerns before I would even consider using this for something real, and I've had two responses so far that address them by merely invoking his name. What a sad place to be in.
Requests is a work of art. And the man is a self taught programmer. In that regard he can be my patron saint for that matter. How many of us have repos that we don’t maintain. He does this work for free. So if he wants to let something languish so be it. If you depend on a work he doesn’t upkeep then fork it and add to it.