BEFORE LANDING CHECK LIST
I'm not fully aware of the A330 specifics -- but it's not so much having the last word, as it is -- doing something the pilots were not aware of.
And my take is with the A/P and A/T clicked off, and in turbulence, without airspeed guidance, and the pilots not allowed to hand-fly an airplane at altitude, and a overly sensitive control system -- it seems to me to be very easy to over control and not be aware of it and also unaware of the side stick inputs they are putting in.
Otherwise why a unusually high pitch attitude? The trim just did what it was told to do.