problem is you can't just take pilots input alone. You need angle of attack, air speed and probably other inputs to correct it. When your sensors disagree or ar

problem is you can't just take pilots input alone. You need angle of attack, air speed and probably other inputs to correct it. When your sensors disagree or are unreliable you get garbage out. Or you can switch the system off and revert to something like direct law mode. But then pilots would have to train flying a plane in that mode to be familiar with it. Which is the thing you want to avoid in the first place.