I think their argument about the technology is batty though. It's the same argument that gets made every time a new creative medium is created. People making early motion pictures were basically filming plays, it took a while before the specific affordances of the medium become realized.
I fully expect that there will initially be a lot of shitty VR games. First there'll be existing games "re-skinned" to have VR support, and they'll mostly be terrible. Then there will start to be games that are designed specifically for VR. And most of those will be terrible too. But eventually game designers will discover what makes VR attractive as a platform, and generations of game developers will be born into a world where VR is actual practical tech; and they will make wonderful things.
The first generations of "tablet-optimized" games are awful too. Developers spend a lot of time trying to figure out how to superimpose a control pad on a touch screen that doesn't have any feedback (and obscures the screen when you use it). There will eventually be games for tablets that make use of the benefits of tablets (I think there's actually already a few of those).
I don't know what is so special about VR tech that would preclude that same thing from happening.