I can't take this seriously when their mission statement is to "break free from Google and Apple" and their entire output is a fork of a Google repo.
If you're based on AOSP, the project is still 100% reliant on Google!
It seems extremely cynical to me to depend on the work of a thousand-man team to build your OS, then patch out a couple of lines and claim you've broken free from them. Without Google, none of this project could exist.
You'd be pleased to hear, then, that "break free from Google and Apple" is not Graphene's mission statement, because this is a blog.