I understand that the basic failure in this incident is the failure of the crew to carry out cockpit checks correctly and I can almost understand the pilots' mistaking the alarm horn and once having done so being of such a fixed mindset they did no further search for the correct cause. I can even understand that the pilots failed to notice a warning for the masks dropping in the cabin but I would have thought that, out of sheer self preservation, that when the aircraft continued to climb the CC would have called the cabin to draw attention to the masks. Surely you can't be CC for any length of time without getting to understand the effects of hypoxia and that time is limited?
As for the Greek courts, I have almost given up trying to understand the way other cultures work. Even within our own country assuming that other people think logically or even that the justice system is logical is to bet against the odds.