what idiot designed a system where by max nose down input on the left stick was canceled by max nose up input on the right stick?
What would you suggest should happen when one pilot pushes and the other pulls? How would the systems know which input to follow? What happens when one pilot pushes a conventional yoke while the other pulls?
Ignoramus that I am, my understanding is that on yoke-equipped aircraft resistance to their attempts would trigger recognition of a conflict and they'd either agree who has control or continue to counter the other's input, with the stronger pilot "winning". On an Airbus the trigger would be aural and visual warnings with the respective arm strengths not being a factor.
In either case, wouldn't continued wrestling with the the controls suggest a bigger issue than how the logic works?