In the US, I would imagine a tragedy such as this would be litigated and end in a financial settlement potentially including economic, pain & suffering and punitive damages, well before a decision allocating blame by a jury.

That is pretty typical. You will spend potentially millions in court/lawyer fees going to a jury trial beyond whatever the end verdict is: if you can figure this out without a jury it saves you a lot of costs. Most companies only go to a jury when they really think they will win, or the situation is so complex nobody can figure out what a fair settlement is. (Ford is a famous counter example: they fight everything in front of a jury - they spend more and get larger judgements often but the expense of a jury trial means they are sued less often and so it overall balances out to not be any better for them. I last checked 20 years ago though, maybe they are different today)