But we are talking about a team of three drivers - all seemingly distracted for one hundred seconds - and no mitigating reason has yet been officially proposed.
Case closed? Of course not. But the official silence is disquieting.
It has been my experience that whenever there is a large contribution of crew error in an accident that official comment is quiet for a very long time if not forever. In spite of this the lessons are available to be learned by other crews if only by inference (from the Boeing or Airbus info releases)
I believe that safety is still being served.
The only weakness is that those who want to believe that "it can't happen to me"