With all due respect, "dense" can substitute for "lazy." Wild and Scenic designation has nothing to do with agency management ("the Forest Service") and everything to do with inherent values that might - under a different Administration (not Drumpf's) - lead to protecting a specific river corridor from development (hydropower, mining, water project, etc.). Once a river segment has been identified for W&S status, proposed, and "protected," it is supposed to be managed to preserve it intact and undeveloped and in accordance with the values of the Act.
Not "dissing", just saying: dozens of far better explanations on the interweb than my poor effort. There are many rivers - segments of them more precisely - that have W&S 'designation" and are waiting a final decision.
What's the opposite of "progress?" Sure feels like "Congress...."