I'd be very interested in knowing how much less the system weighs compared to Standard Anvis 9 setup. If the fidelity is as good as anvis 9 then this would be a great option to save my neck from continuing deterioration. A far as being safer without an aid to see in the dark, i'd say you are way off base. I was one who didn't want to convert to goggles but I wouldn't want to go back now.
Cheers