If it's 11pm on a Pittsburgh night in January, with the snow coming down, road markings barely visible, if at all, then the safe behaviour is to wait it out and

If it's 11pm on a Pittsburgh night in January, with the snow coming down, road markings barely visible, if at all, then the safe behaviour is to wait it out and drive in the morning. If FSD didn't work in those conditions, and this encouraged you to wait it out, then it might have just saved your life (or the lives of other road users).