wow, good point. now, I believe I remember reading about how the AB sidestick does NOT move, but that the pilots actually put pressure on it? is this correct? if so, like you said, as the 'decrabbing' rudder is inputted by one pilot, the pilot not flying can't tell (in time) whether the appropriate 'wing low' aileron is being 'fed in'. No visual/tactile feel of stick (aileron) control inputs. This is INDEED bad during conditions approaching limitations of the aircraft.
For these (challenging) type landings, the pilot flying (for all practical purposes) is flying solo. BAD- in a crew aircraft.