Gums, "Besides that, nobody here has yet to explain how the THS moves with respect to stick commands. I am waiting."
I’ll try:
THS moves by itself, both in normal or alternate law, in order to relief the force needed on the stick. If you pull it will move up, silently, and the other way around.
It freezes in certain conditions, below 100’ radio altitude, less than 0.5 G, high speed protection. It has limitations in its range, when AOA protection is active, bank greater than 33º, more than1.3 G, etc.
In direct law, it must be moved manually, by the manual pitch trim wheel, as the message Man Pitch Trim Only is shown on the PFD.
In normal and alternate law, it feels as if the aircraft is always in trim, as it should be. As thrust varies, both in A/P or manual flight, the trim wheel can be seen moving, compensating.
In direct law its manual use is easy, as the wheel does not move much, to go through the whole range.
AF447 should have had it available and moving forward if the stick had been moved forward and kept there for a certain time. It is necessary to force the nose down, and keep it there, if THS is already much too nose up and the aircraft pitching up.