Maybe theore appropriate comparison to fault is an accidental pregnancy with a broken condom. Clearly there is no fault on the part of the guy having sex right it’s all the fault of the condom. Course if the guy hadn’t been drilling in the first place….forget tougher regulations….criminal cororate strict liability where if there’s a spill like this, Corp is prosecuted and all assets are seized criminally. Wouldn’t this give the execs motivation to take proper risk analysis?