My actual issue is more along the lines of caveat emptor. People bought junk bonds in a company that then went bankrupt. That means they're going to be in court trying to recover money, and there's a lot of risk there about what they might or might not recover.
To the extent that the legal resolution was unprecedented... so was the top carmaker entering bankruptcy with all of those employees and pensions on their books. Biggest bankruptcy of that sort since the depression. Precedent isn't a suicide pact, when things get weird then people can adapt.