Good post Sabre,
Even though we preach see and avoid, inevitably and unfortunately it happens that both pilots will be heads-down in the terminal area. To think it doesn't happen is not realistic.
Maybe what we can take away from this thread is that we raise our awareness of this "gotcha" and when the stuff hits the fan and both of you want to take a whack at the magic box, someone will say "waittttta a minute"...who is minding the store and why are we both heads down".
Safe travels,
FF