Well, I'm him :) I actually left Git. And it looks like nobody has picked it up since. So it's going to be forever "experimental" [1] until either someone starts doing something, or deletes the whole thing
[1] The experimental status is not because it's unstable but rather to allow us (or now, them) to change the UI design based on feedback if we got it wrong (again!).
[1] The experimental status is not because it's unstable but rather to allow us (or now, them) to change the UI design based on feedback if we got it wrong (again!).