It is my observation after a few years in the game that so called open/just cultures in aviation are a spent force .
the culture is open and just until the reporter threatens to reveal the emperor has no clothes then the messenger is very quickly put back in their place.
the airlines CAA,FAA, NTSB & AAIB are all very keen to support the Just Culture myth and will brutally protect their bonuses / sinecures.
Ask Sully how justly he was treated, there are plenty others out there who dare not speak.