It must be a passing thing. Just trendy teenagers hopping on the bandwagon. Another fad from an industry that is addicted to it. It must be these things, despite Github's six years of work on it before release. It must be worth avoiding despite the fact that obvious thought, time, and love has been put into the project.
Yeah, it doesn't do X. It does Y and Z really well, but because it doesn't do X yet it must be eschewed. End of story.