Outstanding safety feature. I had a stick in the spoke/fensder stay before & was lucky to have a breakaway mount. Purchase Velo Orange metal fenders & used these to mount front fender.
As a bonus it made it easy to center the fender on the tire.
Also if you accidently cut the stays too short they work as stay extenders;-)
Also used 3 of your front fender brackets. One on front fender, one on the sheldon fender nut and one on the rear brake bridge. I have an outstnading fender line & saved a lot of work.
I had a squirrel run into my front wheel recently while riding to work. One tab ejected, the other sheared off. The squirrel was ejected and lived. I managed to stay upright and on my bike. I'm not positive that the safety tabs saved me from an endo and more damage to my bike, but it appears that they did their job.