I’m surprised at the disparity between Emacs and vim use (20% vs 3% according to some survey). I thought it’s more equal.

I suppose, while the learning curve for Vim is a lot steeper, you reach the power regions very quickly too. With Emacs, while it’s less alien initially, you need to learn quite a bit more to get to “power user” levels. But then, in turn, it seems that Emacs is much easier to mold into an IDE sort of thing, whereas this seems against the Fu of Vim. One tool, one purpose.