The exterior portion depicted in your link rarely breaks but, yes, every so often I hear of the pivot breaking. But that is rare and I always envision someone unlatching a stuck door and yanking repeatedly to open it!
What does break occasionally is the cheap plastic plunger that engages the metal hoops on either side. I've never had one break in 4+ years owning this coach, but early on I learned to not slam the bin doors.
You can replace just the plunger with a quality aluminum one. I know several people who have replaced a number of them and carry them as spares. You can get them from
Bruce Plumb
417-239-4544
bplumb@centurytel.net
http://www.improvedrvparts.com/improved-parts
His website is a work in progress. He will provide full instructions on how to do it.