In general terms, I have to think the main thrust of this is to emphasize that riding in 'compromised' visibility increases the risk to the rider in a huge way.
Riding in the rain, in heavy traffic, in a blind spot? Bad idea. Glow in the dark clothes, and a flashing beanie aren't going to amount to squat.... best to continue to treat yourself as completely invisible.
Same thing with riding into the setting sun, or rising sun...... if drivers are looking for car sized silouettes..... the bike disapears, regardless of modulators, extra lights, jumping up and down on the seat.....
Great point and I agree 100%. But most of the time, riding conditions are not ideal and some of us have to deal with it and just ride. We try to be preparred the best we can by having the proper gear and equipment for those these type of riding conditions when considered poor, especially when it comes to visabliity.
Just like flying on an airplane. It's dark with lots of thunderstorms, it's raining you just know it's going to be a bumpy flight. Not really the best time to fly but you get on that plane don't you?