It seems that there is some "community" of people not employed by Apple around the development of Swift.
And it seems that they believe that the "outside" world cares about what is inside Apple's walled garden.
Truth is, for non-Apple people: Swift => Apple => no thanks. It is easier to see an Apple programmer excited about .Net than a Windows programmer paying attention to Swift.
I'm not sure why that has to be the case. For example, C# found a home outside of the Microsoft ecosystem inside of the Unity game SDK. That was a result of the initial grass-roots Mono [1] project. There was the same handwringing when Mono started and as it started to gain traction. Nowadays I think most people consider it to be a viable cross-platform language. I see no reason Swift can't go this way as well.
And it seems that they believe that the "outside" world cares about what is inside Apple's walled garden.
Truth is, for non-Apple people: Swift => Apple => no thanks. It is easier to see an Apple programmer excited about .Net than a Windows programmer paying attention to Swift.