The wildcard is, of course, how many people see the 7D2 as a specialist's tool and how many see it as a roundly robust camera for general photography?
Enthusiasts see the 7D2 as being a camera for the reach-obsessed and budget constrained. And there are sports/wildlife/birding folks out there that will be able to do 95% as much with a 7D2 + 400 prime as those with a 1DX + 600 prime for a ton less money.
But, let's face it, those folks have to be only, what, five percent of the eventual people that will end up buying a 7D2? Sure, we talk about them. Sure, the value proposition is through the roof for those folks. But how many really are there?
So, yes, Gizmodo readers and Best Buy walk-in dudes/dudettes will buy one because it's new, it's powerful, and it's built to last. They aren't hung up on SLR footprint, size, weight, etc. They also aren't hung up on needing a FF sensor. But man, will it nail the shot of their kid at a school concert, sporting event, family trip, etc.
Im sure thats what the salespeople will be saying to them in order to sell it, but the first comment I get from almost everyone picking up my 7D and 70-200mm F4 is 'wow thats heavy' and thats not exactly the heaviest lens around. Perception of camera weight alone has changed a fair bit in the last few years in my view.