There is no need for ratters anymore but terriers abound, ratting instinct intact.There is no need for herding these days. Plus, the true herding stock had genetic obedience and any modern day BYB GSD’s that can “herd” are a far cry from the original herding stock. That is my point. People often can’t recognize true working ability and IGP in particular adds to the problem by selecting for sport traits rather than working traits.
Maybe some folks don't recognize work ability but having spent a fair bit of time with real stock dogs I consider myself able. The German Shepherd Dog is supposed to be an all around dog and it is that herding instinct that makes them so well rounded. The loss of it will irreversibly alter the breed.