there is screwing up and screwing up. one - you do all you could, act proactively, educate yourself, but forces beyond your control prevent you from reaching optimal state and massive clusterfk happens. I would keep this one.
then you have ignorants, that in 2016 will not even think that mission-critical system should have SOME backup, off-site. people that will put amazing amount of energy into little political games, backstabbing, or just plain old incompetent lazy ones. those should become exemplary cases.
investigation should sort out which is which, but most will fall on either side of spectrum. usually it's really not that hard.
then you have ignorants, that in 2016 will not even think that mission-critical system should have SOME backup, off-site. people that will put amazing amount of energy into little political games, backstabbing, or just plain old incompetent lazy ones. those should become exemplary cases.
investigation should sort out which is which, but most will fall on either side of spectrum. usually it's really not that hard.