The report cites company malaise in its list of indirect causes.Very hard to prove.Only thing I can come up with would be:
a)a failure to disseminate the data from the Aer Lingus/Ryanair incidents prior 522 which seemed to prove that flight crew can be confused by Boeings intermittent horn.In particular,the importance of direct intervention from the cabin when a climb is continued with masks deployed.If this information had been disseminated and the lessons learnt incorporated into CRM classes then the FA's of 522 would have had a precedent on which to base their actions.
b)Possible(ie.rumored only)failure to prevent the 2 flight crew members from operating together when there was reasonable justification to do so.
Both (a) and (b) are the repsonsibility of the CP.Does it make him responsible for the crash?No.Was failure to do (a) or(b) reckless endangerment?No.
The report says it quite clearly;this was flight-crew error.They paid for it with their lives.We should leave it at that.