Roul, an ideal post for this thread as it provides an alternative view of what ‘basics’ are required.
From a rough translation, the key issues being debated / contested are:-
“Inappropriate response of the crew”,
“Lack of structured failure analysis",
“Not understanding the situation"
“The division of labor in the cockpit."
“Inadequate pilot training in the application of the unreliable IAS procedure."
Inappropriate response depends on awareness and understanding, which can be influenced by training; thus these are some of the important basics. These aspects don’t exclude the underlying technical failure and the operational / regulatory approvals to continue flying reliant on additional training.