Big Al,
I'm failing to see your point. When it comes to safety, many companies calculate the likely risks of a possible defect, and that risk includes the likely rate of incident in the field, the probability of an injury or death, and the potential costs in the form of lawsuits from such injury and deaths. When the company factors all that, they decide if it is just "cheaper" to not fix a problem, even if it means the unlikely event that a few people get hurt or killed.
So, when an isolated case like this happens, don't kid yourself and think that the company didn't know of the potential issue. It's likely they did and chose to do nothing.
Companies should have to pay and pay big when that happens (IMHO). By being forced to pay big like this companies will think twice about letting the "1 in 100,000" type problems from sliding.
TJR