Apple's current commit approval policies appear to be fairly hostile to non-Apple developers and users of WebKit, and especially to non-Apple users of WebKit2. They now reserve the right to break builds on non-Apple platforms randomly and delay patches to fix them, amongst other things.
"Non Apple Mac ports, if broken by core functionality changes to WebKit2, are now responsible for fixing themselves."
For a cross-platform project, this is a stunning policy change. I don't know what was the chicken and what was the egg, but it looks like this split was inevitable.
