"Should".. but people in their cars should also supposed to be able to safely get their cars across and intersection when the traffic lights are out.. reality is different
I think the military and civil airline pilots, and most pro's probably could do as you say
But suspect a lot of others are liable to do silly things when the regular system of dealing with information goes out?
You know the ones: barely had enough recent IFR hours and decide that they really must go fly to their leisure destination for a weekend out with the GF , ending up with headwind, IMC and dest airport closes while their fuel pump is sucking fumes from the tank..
Perhaps those "should" be able to , but there's a lot of em that can't?