Yes, it was very bad of them to take money under the table from that evil historic earthquake, and then let it just happen and generate a once-in-a-lifetime tsunami. They should have reported that to the authorities.
Did you miss the part about the safety issues right before the earthquake hit...
or perhaps you missed how all of this could have been dealt with in the first few hours and they refused to do it.
It is remarkable that people like you pretend that years and years and years of a corrupt climate and engineers that did not have enough knowledge as admitted by TEPCO had no bearing on this incident.