I think Airbus philosophy in general is excellent, but only ask that in the condition of 447, where complete authority in Pitch is retained, that here, specifically, a Default to Direct Law would involve caging the Pitch within strict limits eg: available, but in small doses.
Bonin must be the only pilot who would have acted this way? It depends on what one would expect from the pilot population as a whole, whether the risk to the aircraft with poorly trained airmen would warrant a scheme that went to Direct Law when the Airspeeds were lost. imo.