I could be in the know.
Expect - maybe - some structural problems on the junctions composite-classical stuff of the 787 one of those days...
As for he A300 which lost its rudder - the accident was caused by an idiotic pilot cycling the controls (BOTH rudder and ailerons, to maximum deflections, simultaneously, quickly and a couple of times...) after encountering a brief wake turbulence. Ever heard of inertia coupling, dutch roll ? Do that on any aircraft (Boeing, Airbus, Hercules, Citation, Convair Coronado, B24 liberator) and the airframe will break up somewhere. It's never tested by the industry (during what airline pilots call "certification" when they want to impress the new F/O) because test pilots are not suicidal...
A rudder doublet is what's used by test pilots to initiate dutch roll... INCREMENTALLY and in a controlled manner.
Those who fly Boeing and think it's an Airbus problem : just try that in your aircraft, and you will see (without me on board)
Airbus wings are built in England.
and it took Boeing 15 years or so to remove from their training manuals... that the inertial vector could be used in case of unreliable airspeed ! yes, what a joke it used to be.
As for companies training captains, they immediately switched to the new version without even a smallest wink....