Out of interest, what happens in this 'computer game' if the one who has 'lost' control then presses the button for the requisite time?
Well BOAC the one who had 'lost control' now regains control - simples really - I have control -no I have control - no really I have control etc etc.
About as sensible as if no overide is pressed an input by the same amount in the same direction doubles the input, or if in the opposite direction negates the original input. Remember Hamburg.
I flew with one of our colleagues back in LGW days on the 737 who twice in two trips on a xwind landing put aileron in the wrong way. Frightening yes - but at least I could see what was happening and correct it before the inevitable - don't think that would have been possible on any Airbii.
Still the bus does have some good points like terrain escape which in my opinion is better than any Boeing, 777 included.