Not seeing a breed pass a retriever test has little bearing on them being a good hunting dog. Or a good retriever for that matter. I know a lot of people with fantastic versatile dogs. They would zero interest to enter into a retriever test. You seem to be focused on one very specific bar to which you measure dogs against. I can also insure you Germans take retrieving of shot game more seriously than 99% of American hunters I’ve met.
Also, the OP isn’t looking for a waterfowl dog, or a dog to play retriever games.