None of those articles cite the reason for the change as being media backlash, though. If that was the case, then why would Apple wait days in some cases, weeks in others, and years (according to you) for still others.

It's always resolved through either a change by the developer or a change in the review policy at Apple. Again, the statement is about the relationship between the developer and Apple. If anything, Apple will be less likely to cave or change a decision just because of media pressure. Otherwise, the countdown timer, podcast app, and South Park would have just been approved after the media got wind of it. You're literally arguing against yourself with that point.