She has one and I have one and a good friend who no longer posts here has one, no issues. Hers has few miles on it, it was NOS in the picture. Mine and my friends have lots of miles without issue. Maybe the alleged failure was due to excessive tightening of the tension screw, or over zealous clamping. I wouldn't worry.

The aero and smooth version that has Campagnolo down the side use a 6mm allen bolt instead of the 13mm bolt. Though I haven't put one on that style seat post, I can't see where there would be an issue, other than bolt length.