Maybe the Droids will jump straight to 4.4.1, then the Moto X will get a maintenance release to bump it up too. Timeframe? Who knows. I'd rather have Moto fully debug it this time. Well I have to cut them some slack because the bugs are present in AOSP Kit Kat (like Exchange issues). The lock screen lag seems to be Moto X related, but I'm not sure what's causing it.
That's always the risk of jumping to a new OS: bugs. Jelly Bean 4.2.2 was pretty mature by the time the X used it, and it was pretty damn good.
Since the update is over 50MB, it's safe to assume that it patches quite a few files, so it's not just a camera update. A singular camera update wouldn't require a .1 jump in Android. This is definitely a maintenance release to fix bugs too.
EDIT: Yep, looking inside the Nexus 7 LTE 4.4.1 OTA, there are a TON of system files being patched. One little goodie seems to be an update to libart.so and libart-compiler.so. Looks like ART is being patched (even if it's not selectable in the dev options in the Nexus 7, IIRC).