"it needs to push carriers to push over-the-air updates promptly after fixes become available."
Carriers?
I don't think they get a say in it any more... Sure, back in Nokia Symbian days they did (because they were always customising the interface - and generally screwing it up), but on iPhone and Android, the phone polls via the intarwebs for OS updates.
Whilst it's possible carriers have redirected this, most of them don't bother fiddling with the system partition, they just stick on a few crappy carrier apps, which a system update will happily go underneath.
The delay is the OEMs like Samsung, HTC and LG, who heavily modify, and change the source of updates from the Google servers to their own.
Biting the hand that feeds IT
