The UDH hanger part is replaceable. If it's plastic, it will not be as bendy as a thin metal hanger, thus won't bend as much. It will break, but hopefully the parts will be cheap to replace and will be intentionally a weak point. Bending a hanger on a ride means you'll be able to ride out. Breaking the mount is a problem. On the other hand if I'm not grossly misunderstading how things might work, it would mean less weird shifting issues caused by bent hangers (the amount of drivetrains I've made to work again using just a hanger...