I think that makes sense too. Sure a drunk cyclist is less of a problem than a drunk motor vehicle operator.
But as the third party you still don’t want 100 kg (200 pounds) of dude and aluminium frame running into you at 20 km/h (12.4 mph), especially if you are a pedestrian, a second cyclist, or a biker.
No not really. I have the bedtime mode set up the way I want it with the necessary exceptions. Airplane mode would mess that up.