I try to see the blue seber at the time 1.27 for a lot times, it still can be moved although the controller is blocked by body.
But still can not confirm about this because may pimax use the same technique like the WMR controllers, when the controllers are blocked (in WMR, controller will be out of camera), software will calculate the direction and speed to find the last position and move the controller to the target automatically. When we move the controllers to the side, it will not use jumping from old position to new position immediatly, but they will move from old position to new position by initial speed .
In programming, you can use each position to specific the controllers position or you can move from one position to the next position by adjust the speed of movement.
Problem of this technique is controllers can't be moved when we move up and down while the controllers are blocked by body or slow movement.