Does anyone here have any idea how much FODebris you were to find if you were to walk down any major airport runway?
As one who has done this many times, yes.
Also as one who has overseen system safety analysis I can tell you that it was unforseen and extremely unlikely that one could have forseen the consequences of the existance of the object.
I'll admit that tort law in france belongs to their judges and none of us may influence their progression along these lines, however the regulatory administration of the rules governing safety of flight may and have approached this from a different perspective.