They literally threw up during the last stream. That's not the kind of issue you need massive amounts of experience with VR to notice.
If it's a software issue, I'd expect everyone to be barfing all over the place. But that's not happening.
If it's not a hardware issue, then the only thing left is their setup. I haven't been watching the streams, so I can't comment on what they've tried. All I can say is that by far most people aren't running in to any serious tracking issues, and those who have generally managed to resolve them in short order.
I'm out, have fun justifying you negativity. Check out a twitch stream, or read the OT if you feel like broadening your sample range a bit.