It's not like they're going to break up Boeing. They can't actually do anything to improve Boeing. All they can do is wag their finger. It's not like there's an alternative American company to give our billions of dollars to. And it's not like other companies will suddenly fear being brought forward to be gummed to death by whining bureaucrats.
You want real pain? Have them pass a law that says the entire executive leadership's bonuses are forfeit, retroactively, if the company fails to maintain an adequate safety record. Shit will change there real quick. (That law will never happen but it's funny to think of)