well can someone die from a car crash?
Again, by your logic, all cars should be taken off the road because it's been proven that it is indeed possible to hack a car's computer system.
Also, based on the link slapshot just provided, it is possible for this to happen, yet planes still fly. So your statement is just wrong.
But to your point, GM is having issues right now with their ignitions and people have died and they are still driving.
A plane with 300 people crashing in a residential neighborhood is much different than a single car crash. The media picture is much more dramatic and immediate.
This isn't a black and white issue. Many variables involved.