Wheelie
Who is talking about feedback?
In severe turbulence, sufficient to damage a plane, is the pilot's seating secure enough that the transient accelerations of the plane are not going to move the pilots arm out of the pilot's control in response to the accelerations?
Will a stick with no hand on it stay perfectly still poking up there in the air above the mounting point as the plane accelerates with rapid jerks in random directions?
This is independent of whether the stick's output is controlling the plane or not. It's a question about whether under very heavy turbulence the input to the stick from the effects of the turbulence is stable enough to fly the plane. If not and the pilot HAS control isn't it possible that the bouncing around could lead to improper or damaging imputs to the flight control system?