^^^ This is every cateye I have ever used. The only issue I have ever had with the cateye is that any bend is noticeable to me while wearing them - quite infuriating. Having used and currently using cheater cage, this is not so, and I know it is bent in three places. Regardless - and given time and shot placement - think they're all bound for this fate. While the powder coating is cracked, I doubt any welds are broken. I have tested this by taking the cage off, taking the clips off, and tapping on the cage in different spots with the handle of a screwdriver. You're attempting to listen for any small rattle or dull sounds. This is A test, not THE test.
I've always gone the dum dum route and pounded out the dent from the inside. Usually gets the desired effect.