Cool, I never did anyways. I knew it was horseshit to begin with and was just info being fed from uneducated tech people to more uneducated tech people.
I think it was just more protecting against the one in a billion chance of interference that could potentially take down a plane full of people. Why risk it if the alternative is something as basic as tapping a setting on your phone during takeoff and landing?
You are one of those people who should be forced to do something very sensitive with high responsibility and have someone sit next to you and slap you randomly in the face while expecting you to do your job. That's essentially the same thing you are doing to pilots while they try to keep your ass safe and alive.