This is specifically for children under seven, and presumably (I have not yet read the actual study) only when a certain percentage of time is spent immersed in

This is specifically for children under seven, and presumably (I have not yet read the actual study) only when a certain percentage of time is spent immersed in VR. I would be very surprised if this was solved, this looks more like a "just don't do this". That's eminently reasonable for the first seven years.