Aircraft are all designed with an impressive amount of redundancy. The failure of any single component, or even a cascade failure of a system, should almost never lead to an irrecoverable scenario.
Generally speaking, you will probably survive if you shut off the engine of an airplane, cut its control surface actuators, and just let it do as the airframe is designed to do - fly a straight line.
When you see cases of aircraft breaking up in the air from extreme stresses of some kind of maneuver - something fishy is in the works. While various stalls and dives are possible in inclimate weather, it is exceptionally unlikely that any civilian aircraft would enter such a departure.