Ahh, so they probably had to restart the QA on the whole release a few days ago (including FaceTime Audio and associated features) after adding the TLS fix at the last minute. It makes a bit more sense why they'd make us wait a few days, now.
The problem was not coordinating the release of 10.9.2 and iOS 7.0.6. The other problem is their patching cycle in general.
This update includes many high severity fixes from mid 2013 and one issue as far back as 2011. That tells you all you need to know about Apple's security program management. They release uncoordinated and when they feel like it, with no sense of urgency. It's convenient for them to just toss critical security fixes in to their 6 month OS updates, so they do.
Some criticize Microsoft for their "slow" patching, but they at least have a dedicated monthly cycle just for security updates, and they will send them out of band if a 0day gets exposed. And rarely will you see them drop 0day on themselves (though this wasn't always the case).