In order to work out how dangerous flying at night is, we need to look at the statistics. Perceived risk and actual risk are often very different.
I think that statement comes into the "true but irrelevant" category.
If, for some of us, the perceived risk is enough to make us feel unhappy then we ain't going to do it - the real risk doesn't matter. Do remember that we fly for fun, and that when it stops being fun the obvious choice is to stay on the ground!
(As a councillor I come across this one all the time, in the difference between "crime" and "fear of crime". If a little old lady is too frightened to leave the house to go to bingo of an evening, and you put in some street lights or CCTV cameras or whatever and she now feels able to go out, then a real person's real quality of life has been improved even though crime continues at exactly the same rate as before.)