If both engines went out, then that means hydraulic power was lost, and that all of the aerodynamic forces on the control surfaces were transmitted directly to

If both engines went out, then that means hydraulic power was lost, and that all of the aerodynamic forces on the control surfaces were transmitted directly to the stick. This is exactly the same as trying to steer a car with the engine turned off - you can do it, but it takes much more effort than when the power steering is working.