MOL talks about a "significant management failure" which is true (if not possibly an understatement), but this problem has not arisen at the turn of a switch, it must have been building for some time. So who was it that knew about it and more importantly why wasn't preventive action identified and taken sooner.
I would imagine that heads will roll in the management team, if they haven't already. I can't help believe that some time ago someone had all the information to predict this and either prevent it, or at least minimise it. I suspect that someone didn't speak up for fear of delivering a message that they knew would not want to be heard, probably says a lot about the management culture.