Ya a 360deg camera in the middle of a surrounding green cube screen would rock! In that video you're limited to just the frustum slice the cameraman chose when filming. Though even with a 360deg camera you're still limited to one vantage point. Alternatively one can do just like the movie Avatar where it tracks your entire body then you can see your virtual self rather than your actual self.
I don't like goggles being seen as the only way to experience 'virtual reality' either. How well do polarized 3D glasses work on Liquid Galaxy setups? Games like 'Descent' and 'Quake' 2 decades ago were 'virtual reality' as you could see 360deg around and move all around a 3D enviroment. Apparently Descent did have stereographics back in the 1990's, though the 263 x 230 per eye resolution seems horrible (perhaps the motion to photon latency wasn't so hot either)
https://en.wikipedia.org/wiki/Virtual_reality#1990.E2.80.932000 It's interesting that the original devs of Descent is giving 6DOF and VR another go with Overload for 2017
http://playoverload.com/team/
(I'm assuming stereographic is the same as stereoscopic)