Your concerns are completely nonsensical. It's clearly being marketed as a healthcare tool for people with debilitating injuries that preclude the use of hand-powered wheelchair controls, severe situations where there's no neck-down control and users would be limited to controls like head-tilt or mouth actuated systems. These people obviously require daily care to simply get them out of bed and into the chair and back again every single day - their nurse could just put on their Vision Pro for them! This seems like an incredible leap forward for people in this situation, if they iterate on this and it gets better then this could be a very viable wheelchair control system in the future.