As there're a number of architectural (or maintenance) features in golf that can be used to create risk (penalty) and reward, rough is just one of them. The degree to which the length of rough is used and the degree to which its placed and arranged on a golf course is really not much different than a sand bunker, mound, hollow, trees or any number of other available features used by architects to create strategies in golf architecture. Obviously penal rough lining both sides of a golf hole is not much different than penal bunkering or penal trees or any other penal feature lining both sides of a golf hole---all of them can extract some toll or tax and all of them can be arranged and used in interesting and thoughtful ways (to the golfer's decision making) or uninteresting, thoughtless and shot dictating ways (to the decision making of the golfer). Just because it's rough doesn't necessarily make it's best use any less effective than any of the other available architectural features.