That is a myth, every aircraft that has not been structurally compromised, has a glide coefficient and minimum air speed to give a minimum decent rate. Now granted some have a better glide ratio than others BUT ALL AIRCRAFT CAN GLIDE. Now if a wing was ripped off than no gliding, just falling....
If you had to choose between taking a flight in a Lear Jet, or a Cessna, which would you pick if time wasn’t an issue?