Well the article is about a frame issue that Toyota has since honored and replaced many frames. I have a friend that has a brand new frame from Toyota. She is very happy. So comparing a rivet to a frame is a little over the top but I can see how this could be upsetting. Any signs of rust on any vehicle is disturbing. I would make sure the dealer documents the issue, then address the issue and coat it with touch up paint. YMMV.