There aren’t many conclusions that can be drawn from this video. All it proves really is that you can turn around without the headset cutting off. Like the Pimax 4K controller video, they used Beat Sabre, a standing 360 game with limited movement and no need for moving around. I’d be way more impressed if they used a game that required standing, crouching, walking around etc when facing away from the tracker. Until then, massive pinch of salt required.
The same is true of the 4K controller system. They should use a better game as a demo. I could set up a crappy Leap + 4K demo that would look as impressive same as this.