I’m not really sure what they were supposed to “know about”. I mean, I’ll bet they know that if you run over a board with a nail at highway speeds with a standard tire, that they are somehow criminla in not notifying the public of that even though .00001% of the purchasers of their cars were killed when it happened. Maybe they are accountable because they didn’t use the new airless tires. I dunno.
I really hate GM, but I consider this a tempest in a teapot.
Apparently, this ignition issue has directly caused 12 deaths, and the fix was cheap and fast to replace.