LOL, something else could have caused that...
Harness bars are for harnesses, nothing structural, and a $100 bar off ebay is a lot better than some retard bolting the shoulder straps to the floor behind the seat.....
just run it correctly and you wont have an issue, haven't had any probs yet myself!
obviously there's safer ways to run your harness (off the rear deck is NOT one of them), but a Harness bar IS a good start for your average joe, not everyone needs a full ZOMGDORIFTOFDLEGALOHSHIT cage...