I don't think it's uncommon to see Rottweilers herding, which was their original purpose.
I know of MANY dogs who are working in herding and who have herding titles, and there are quite a few Rottweiler herding Champions.
Long coated dogs do happen. They will happen much less frequently now that gene for long coat has been isolated and can be tested for. Long coats are undesireable in the Rottweiler. You may say or think what you will, but responsible breeders go by the breed standard. Long coats are a DQ in every breed standard globally. There is no way to tell if dogs in shelters are mixes or not, so that dog with a long coat and black and tan markings could come from a variety of ancestors and look like a Rottweiler.
No responsible breeder who cares about their breed would use any dogs for breeding who have disqualifying faults. If long coat puppies happen in a breeding, they should be required to be spayed or neutered, and placed in caring lifetime homes. And of course there is no reason why they can't work in obedience, herding, tracking, SchH, etc.
My uncle had a working rottweiler on the ranch he worked at a few years ago. (She passed) She was a beautiful girl, very driven to herd the cattle, but really good around the children. She wasn't a long coat, so I don't think I'm really adding to this conversation except that yeah, rotties still work.
Chinchow and Dizzy seem to be arguing for the sake of being annoying. It is clear everyone here agrees that a) variation in Rotties coat doesnt make them any less of a pet, b) and it may not stop them from working in non-extreme climates. All we are saying is, it is not breed standard and knowingly breeding them is unethical. Unless the dog in the rescue has a cert, it is a mixed. My neighbour had a rottie x lab and you dont see the lab in him at all. Anyone would easily mistaken it for a pure rott. If you are not in the scene, you wont know and see the Rottweilers who are still working today. I have 2 rotties and we train for tracking, obedience and protection.
Im sure that coat goes a long way on those freezing German winter nights. Most people don't realize the even the standard rottweiler is reaally a cold-weather dog which is why it has a warm double coat.