This sort of thing is why I'm increasingly disinterested in developing for iOS for fun (and why most of my recent side project work has been on web apps). App review is effectively a black box since the rules are applied so inconsistently, and working for weeks or months on something only to find out the Apple doesn't like it is a constant concern. Add in the the real and psychological barriers app review imposes when making bug fixes or updates, and it makes going back to the web rather attractive. It'd be nice to see Apple make some changes to the process.
(I know I could move over to Android dev, but since I use an iPhone it's not terribly interesting for side projects - though that's my problem, not Androids's.)