Lonewolf, ‘
"manual flying" still includes significant mental skills’, obviously yes, but which comes first.
It may be of greater value to consider the physical and mental skills together as a process; one process for hands on flying and another for auto flight. Thus we need alternative skill sets or differing emphases’ on components of the basic skills; what to use (to look at, to consider, to do) and when.
Unfortunately many contributors use "manual flying" to mean exactly what they mean, which is not always interpreted having the same meaning when read.
Please no more
‘Pitch and Power Chorus’ 
Has the industry investigated the differences between AF447 and those A330 crews who successfully managed ASI malfunctions, or those who avoided ice crystal encounters, similar to the A330 in the same area as AF447 (I have mislaid the link to the graphic of other traffic and tracks).
Whatever those crews did – skills, actions, etc, might provide a better basis for training in order to avoid LoC accidents; promote and train the successful skills.
The industry must review some of the basic operational and training assumptions –
double loop learning.