@jcj:
By its very own nature the BEA is simply an incident and accident investigation bureau. It is not a regulator and cannot make recommendations unless invited to do so. The previous UAS incidents happened across a wide group of airlines from many countries and none of the investigation bureaus of those countries saw fit to make recommendations either. The revised procedures and workarounds, along with the pitot tube replacement schedule were considered sufficient by all parties at the time, so to point a finger at the BEA in this instance is a fallacy.