Thank you alf5071h for the links provided. They are very interesting
In the report Punishing People or Learning from Failure? - Dekker, states:
"Human error was the starting point for Fitts' and Jones' studies—not the conclusion."
Maybe I was missunderstood, and I do not think that I made a final sentence saying that pilot error is "The Cause" of this accident or confirm it was my conclusion. As everyone on this thread, we are all throwing comments and data to try to understand why the whole thing happened. Many guessing ideas and assumptions will be used, for days to come until more data is available, a lot of which we do not have. Then, we will all use the best of our knowledge to provide answers, and possibly help to avoid this thing from happening again (at least, to readers of this thread).
Like Fitts and Jones, and many of us, I think we should all encourage the hunt for deeper, more systemic conditions that lead to consistent trouble. Cutting the links of the accident chains really saves lives. This thread is working great in the hunt.