When the USA Airbus lost it tail in a vortex on departure the NTSB investigated the airlines training techniques and discovered a fault in their teaching, plus a lack of information from the manufacturer on the matter. In other words it was not deemed to be a design fault.
I wonder if there has been a case, or ever will be, of an accident resulting from a recoverable incident due to lack of basic piloting skill. If this could be the case, and the training dept was investigated and the airline handling policy scrutinised, I wonder if the AAIB would conclude the pilots were 'not fit for purpose' and take action? True, they would have legitimate LPC's and prof checks, but the cat would be amongst the pigeons if it was concluded that the pilots should have been able to save the day but were not competent.