No, it didn't have anything to do with the coating being worn off, as the coating started coming off long before I bent the rod. The coating literally only lasted a few uses before it started coming off. I later bent the rod by my own stupidity trying to push a tight patch through a muzzle loader. That being said, I've abused the Tipton a lot more and it's still straight. However, it can't really bend and stay bent. It would have to break unlike aluminum. It also doesn't have any coating coming off, but then again it doesn't have a coating to come off. So while, I admit that the reason the Dewey got bent was my fault, I've been about as rough on the Tipton and it's not given me any issues. The coating coming off on the Dewey, however, wasn't from me improperly using it. The only thing I did that some might consider improper is clean a couple of guns from the muzzle end as they were semi auto's and you couldn't clean them from the breach end.
I've also read several other reports of people saying that they are long time Dewey users, but that their rods they have gotten in the last few years have had the coating start coming off. I don't know if there is any truth to this or not, but I've read more than one report of it.
Even if the coating doesn't come off on most of them, why buy one when you can buy a Tipton that doesn't even have a coating to come off, doesn't have the possibility of bender, or any of the other negatives of the Dewey, but yet doesn't cost that much more?