Remember that many places are still running older devices (e.g. Bold 9900) with their old operating system (OS 7.x or below). This old OS is what everyone continues to point to and make an example of when complaining about the company and their products. Often this is done in an atmosphere of complete denial at the very existence of their newer OS and products.
I wouldn't be the least bit surprised if the Whitehouse has not yet upgraded their devices and infrastructure from BB7 to BB10.
Some comparable jumps in the computer world would be Mac OS 9 to 10, or Windows 3.x to NT/2000. Yes, its that big a change. No, it doesn't happen quickly. In the interim, there's a lot of overlap and strong opinions that are dismissive of the newer product.