Actually the points of contention here are:
1. Emergency pumps were marked as checked, but were not actually checked.
2. Diesel backup generators were probably not checked as they experienced a cascade failure when powered on.
3. Post could have been dealt with better (though this is likely more the fault of former P.M. Kann).
4. Company may have mis-used disaster management emergency funds / officials did not act in a responsible manner (EG officials did not take pay cuts / officials did not start working extra hours / generally officials did not show enough responsibility).
Particularly #4 should be looked at as there have been accidents at nuclear plants before - all previous cases had officials immediately responding to the issues ON SITE and seeing the solutions to completion personally. Companies like Touhoku Electric and Chubu Electric have shown extremely responsible oversight to the point of their CEO's taking extreme personal risks to remedy any problems and constantly going beyond government requirements for all safety measures. TEPCO on the other hand seems to be run by greedy d-bags.