What did the parts dept where you got them say? Isn't there also a warranty, so at least you'd get free replacements?
I'd also suggest writing up a detailed report, (including those pictures), and send it off to:
26555 Northwestern Highway
Southfield, Michigan 48034
They're the manufacturer, and I'm sure they'd be interested, especially if you mention the liability problems they'd have if failure of these components caused a serious accident. I'd mail copies to several departments, such as head or manager of the MOOG Division, warranty dept, legal dept, customer relations, even the president of the company, (be sure to include your contact info so they can get back to you). Sooner or later it's bound to get to the right people, and if there IS a design defect, I'm sure they'd like to know about it. If it were something non-critical, (like floormats), I'd just say blow it off, but it might be worth your while if you were instrumental in helping them determine the cause of the failure. New from the factory last like 10 years, so there's definitely a problem somewhere I'm sure they'd like to know about.