They is bedlingtons working in U.K. And Europe ,got to remember they was never bred for the shires and its packs on horse back but the border lands were a bigger tuffer dog was needed to work the rock piles .they are used on pig ,brock in Europe because they suit bigger game.
plenty of kc dogs of different breeds work ,look at the whippet and they still rated as good workers .its not the breed at fault but breeders .