My point was that it works in those cases because Enthought and Continuum provide a bunch of (often hard to build) packages that provide all the extra stuff.
Maybe the community will spring forth and do that -- I'm skeptical because I tried to to that for years for OS-X and it was just too much to do. And the infrastructure was there.
Before pip and wheel there were mpkgs on OS-X, and repo's of toms for Linux years before that -- but always the result of a couple people's heroic efforts.
Maybe the infrastructure has improved, and the community grown enough, that this will all work. We'll see.
CHB