Yeah, that specific one is not only extremely expensive (on a per home basis), but has some material issues I've never seen resolved. Mine are bigger (5-50k homes), but cheaper, and not that much bigger (think large barn)
In a former life I was an air traffic controller for the Marine Corps. When we deployed (don't mis-read that, I only deployed to Laguna AAF in Arizona, and to 29 palms) an ATC detachment, we used anywhere from 6-12 large diesel generators. And those were just for ATC. AARFF, and any squadrons on the airfield used them as well.
What I envision, is one of these nukes-in-a-box being used for deployed military units. We would have been able to deploy with a whole less section, and all the personnel, equipment, etc that comes along with that.
I'd venture to guess you could run a whole mobile airfield with one.