The skeptic in me points at android and deduces that the whole focus of Google open source is skewing ecosystems towards google revenue and or hiring models.
For more about Go and open source, see my opening gophercon keynote, at blog.golang.org/open-source.
Why is there a massive skew favoring Googlers having their proposals implemented compared to plebes?
The AOSP acceptance decisions are made by Google employees. You are free to fork android, but Google favors features that are aligned with their objectives for the platform. See this thread for a tangible example: https://news.ycombinator.com/item?id=8803118