As far as I can tell, this Ubuntu on Windows is completely useless for me because (unlike Cygwin) the environment does not have access to the full filesystem of the Windows boxes.
It does although there are some gotchas with regards to permissions (same with cygwin). And the next version will let wsl interact with windows binaries.
But they scare developers away with their app store clone and their mysterious release cycles for the o/s and sdks.
Hmmm.. Once you code something it's supposed to work for many subsequent OS versions. How is that scary?
They might have sold 50,000 units. It does not matter much.
Do the math: 50,000 * 8,999 = almost half a billion $. I think it would matter a bit.
Long computations which yield zero are probably all for naught.