No, you are basically right. I'm saying that if all the flight control computers failed, the pilots would still have control of the aircraft through the rudder and horizontal stabiliser. They would be able to keep flying, but they would not be able to land in this state, (or if they did, it would be like Sioux city). They would be able to keep a relatively stable flight path while they reset the flight computers. As long as they got some of the five back, they would be able to land safely.