Hmm... odd.
I know. It's already well past its initial projected launch date. As I said, it's still in experimental stage but it is playable now. They are working hard to work out some bugs and balance issues before it goes stable.
Now I have had issues in the past with playing experimental patches and it messes up stable saves. So I am not doing that again. Once A22 (aka 1.0) goes stable is when I will get working on getting my mods and prefabs up to par.