Documentation is more important than the library, in terms of quality. Obviously you need the one before you can have the other, but I'd take a slow and slightly buggy library that I know how to use over a more functional one that I'll never figure out.
If it's an idiom that isn't meant to have anything to do with real autism, then I genuinely missed that memo.
And the title wasn't really intended as linkbait; I was annoyed with Atwood after seeing that phrase because I genuinely like his writing and expect better from him. After seeing his post about autism that someone linked above, though, I do regret the title, and if I'd seen that before (which I should have), I would have gone with something a lot less inflamatory.