It's just the whole movement thing I don't buy.
They've really got to think about the size of their market as well. Time and time again, any gadget or gizmo with limited hardware penetration has failed in the past. Motion + VR not only requires some fairly expensive hardware, but also requires a large clear space in your house somewhere. They're heavily limiting their market with that. No big publisher will seriously risk making a AAA game with such a small market.
Motionless VR has some serious potential though.