Yes, I read that one too, Turbine. I can see his points. The 3D Mk II eyeball does give a better appreciation and quicker interpretation than any current HMDS/HMS/etc will do. And I can see how the restrictions on head movement would be frustrating, even looking up to the lift vector or plane of motion, let alone behind you. Remember, to see the imagery in those obscured zones, the pilot still has to get is head pointed round there before he can see through the seat.
As you say, it is an interesting take on it.