There may be an error in the article, the DROID RAZR (Verizon) is listed on their site as running JB 4.1.2 along with DROID RAZR MAXX (Verizon). It, along with the Bionic, are based on TI OMAP SOCs.
It seems that any device that launched with a TI OMAP SOC is no longer being supported. This is very likely to be because TI exited the SOC market and thus no official driver is currently being developed/validated for anything beyond Android 4.1.2. I doubt Google/Motorola is going to accept the liability of taking over driver development for TI.
Note: the PHOTON Q 4G (Sprint) is listed as "Future plan coming soon" there may be hope for that phone after all
@weilin TI had some leaked beta drivers for their SOC not to long ago. It wouldn't surprise me if they is why its beings updated. I do know that the current drivers are not compatible with the last 2 or 3 versions of Android.(xda-developers)
That being said. It makes me happy to see that they are removing blur altogether and the speed at which updates are coming in the future is always a plus.(Even with Verizon's approval process... )
@jskilnyk: They're not though, According to the official website, those Droid RAZR and Bonioc are NOT getting upgraded to 4.4 (the article is wrong).
I'm speculating the reason why is because a beta driver is probably too much risk assumed by Google/Motorola to package it up and release 4.4 with it. If anything goes wrong they would be on the hook to fix the driver for TI who probably long dumped the driver development team a long time ago.