Ouch. Reading that, they're not just making development less open - developers are now allowed to merge code that breaks the build on non-Apple platforms. Worse, in order to merge any changes to non-Apple platform support code, developers have to have their changes approved by "owners" within Apple who have no incentive to review code promptly and no knowledge of the platform in question.
https://lists.webkit.org/pipermail/webkit-dev/2013-January/0...