With respect, PJ2 is precisely on point. However, the focus of the investigation seems to be closing on Human Factors, and rightly so, if the Data released is accurate.
If this is too quick, then my apologies. The CVR shows at its very basic a lack of underdstanding of the Flight Path, and its stimuli, both human, and mechanical, (Electrical?).
The Human dynamic will eventually be broken down by Psychologists, Behavioural, Physiological, and probably Psychiatric. This seemingly dysfunctional mess after loss of Autoflight will be dissected, and rightly so.
First, and not least, is the SS. The SS is only lacking in 'performance' relative to its Human counterpart. There is no need for each Pilot to see his counterpart's stick, period. Not if CRM, and a strictly no nonsense environment is followed. That is how I see it. Does PJ2 agree?