Hi,
In the legal sense, it's always going to be a case of split responsibility between Airbus and the airline because of the known pitot tube issues and the subsequent mishandling of the aircraft.
I will repeat (I posted already about)
On a pure legal sense .. AF is not a culprit concerning the Pitot tubes
It was not a law to force AF to change or replace the Pitot tubes.. it was only recommendations
You can't break a law if this law don't exist !
AF bear not responsibility concerning the Pitot tubes .. in the legal sense