Whopity - i dont follow, i didnt think it had been suggested the pilot was relinquishing command merely letting the other person wiggle the stick.
There is a huge difference. If the passenger merely places a hand on the stick following the pilot is this illegal? If the pilot takes his hand off the control does that make it any more or less legal? If the ap is on and the passengers places a hand on the yoke are his actions illegal? Silly examples perhaps but the commander is the commander and in all the debates past and doubtless future nothing has changed because he allows a passenger to handle the yoke.
Thats my feeling at any rate.