I would think getting sick from using VR would ENHANCE a survival horror game, not diminish it. Especially when you come across something that's supposed to be sickening in the game itself.
As long as I actually CAN kill everything in the game, even (or rather especially) if I need to conserve every last bullet to do it instead of running and hiding all the time I'll be happy with this. As much as I'd like Resident Evil to "return to it's horror roots" (Resident Evil was never scary in the first place, more like corny) the last thing I want is another Clock Tower clone like Silent Hill Shattered Memories was, something more like Evil Within.