As far as the above post about control columns I don't see that as the problem. The issue is not back driving the controls be they sides sticks or yokes.
If I understand the report correctly, the guy in the L/H seat never understood that Bonin held back the stick for quite some time if not all the time. If the other 2 guys would have understood that, they most likely would have taken the correct action, I believe.... maybe I´m wrong....