Simultaneous failure of important* elements
Is there any indication if the PF (and PNF) understood the cause of the Law change was the simultaneous failure of AS sensors? (considered as of negligible probability in the a/c System design) I.e. they realized that (if) the start of the events were caused by "just" the "icing limitation" of the (inadequate) AS sensors? Or also they never understood the reason of AP/AT disengagement and subsequent "steps"?
(*) Important that could be considered critical?