That's how OS X is now, after ~10 years of closed development. When it first started it was open source FreeBSD and Mach. I even remember the FOSS community's disappointment when Apple close sourced the project.
Who knows how eOS will look in ten years, and the state of OS X now is certainly no basis for criticism of brand new OS.
Who knows how eOS will look in ten years, and the state of OS X now is certainly no basis for criticism of brand new OS.