One point that should be taken away, review your state's reflector law. In some states, a red blinky does not replace the requirement to have the red rear DOT reflector or yellow pedal reflectors. So a cyclist with ten blinkies may still be found at fault for not having one of the reflectors.

Hawaii reflector law is even worse in that not only does the rear light not replace the reflector requirement, the reflector must be at least 4 square inches. Rear reflectors sold with the bicycle do not meet this requirement. So I am pretty much the only night riding cyclist in Hawaii doing so legally, because I bought a >4" DOT car reflector for use on my night bicycle.

291C-147 Lamps and other equipment on bicycles. :: 2013 Hawaii Revised Statutes :: US Codes and Statutes :: US Law :: Justia

Hawaii no-fault law is at least good, in that no matter who is at fault, motorist insurance has to cover medical for an injured cyclist or pedestrian.

The OP report reminded me of another news story with video posted in BFs some time ago. The police and news put blame on a cyclist being hit from behind because the cyclist did not have a rear red blinky. The thing was, the video showed the cyclist blinky broken off the bicycle in the intersection where the collision occurred, still blinking away. Clueless cops and news people could not see what was right in front of their eyes.