The device acts independently of plane avionics and is fail-safe and so is the second version of the device that is integrated with avionics and FBW. 

Full failure of device four redundancies brings no added risk.

With a combination or password, the pilot can turn the device OFF to get out of difficult air space. Airlines and pilots will like that.

The device automatically detects intruder pilot and turns itself ON.

In poor visibility or as a result of a tired pilot's action / reaction, it prevents crashing into mountain slopes, ground, or sea.

If sabotaged, the device signals airline headquarters before take off.

As a plane strays seriously from its route, the device sends an early alert to headquarters.

The device prevents mid air collision.