Depends on the roads you ride, on the unlit country roads i use when it is completely pitch black in winter the reflectives stand out a lot even with good lights.
Combining reflectives with good rear lights to present a large "target" of emitted and reflected light to make other road users aware of you is my main concern, all of your photos as far as i can see were from the front of the bike rather than testing reflectives with rear lights from another road users perspective.
I don't think anyone is denying they work well in clean light conditions. Or that rears sometimes work better with hi-viz.