Introducing 'EASA common purpose' will only do one thing, add bureaucracy for the good ones while the bad ones will give a sh#t anyways no matter what paper says. No, there is no sense in it at all other than uncover we are all unable to live common sense. Seriously, if we look at this incident - how would some paper tiger even change a little bit on that behavior? Regulations are for those who are willing to follow them, the others are unreachable by that.