I'm classing that as a tiny iOS 7 API, like the keyboard, thus either slipped past review or apple let it go as only a cosmetic API as it were. Now an app using a more serious new API will be the confirmation that Apple have full on changed their process with new iOS app updates.
If Apple had officially started approving app updates using all the iOS 7 aPI's, whereas the new Facebook, Evernote, etcetera that have been seen as ready to come out.....
Additionally the tech blogs would have it on their front pages about the roll out.
See above.
You mean apple accidently pushed around ~10-20 full iOS7 SDK Apps? Yeah sure. I really don't know why you are defending these non-ios7-updates-before-the-18th thingy. Why the big apps like Facebook etc. haven't been released no one knows. But apple is approving a lot of ios 7 sdk apps and not by mistake.