Yeah, I don't think he intended it to happen, ie was involved, but too arrogant to look at failures in the fundamental architecture....so here's a real life scenario.... I'm an architect and I build a building, now many people warn me about structural weeknesses, one day a truck crashes into a pillar I was warned about and brings the building down. Now I didn't drive the truck, but I knew about the issue and did nothing, am I responsible?

Yes negligence

Yes, that bothers me. Did he believe the issues which people brought up, which are now known to have been relevant? I don't know. It's generally hard to hear the signals over so much noise. After a big mishap happens, detractors have the microphone and single out past chances to have prevented it, and it tends to sway the mob. I resist being pulled into the mob, but I think that he wasn't the right guy for the job. It was definitely either a lack of technical understanding, or a careless lapse of regard for the danger.