Saying the purpose of the forest is timber production is probably closer to Pinchot's original intent than the current way of doing things.
Yeah, timber production was certainly core to his ethos regarding the use of the Forest Reserves as i understand it. Certainly was in the Organic Act, no doubt.
But, so was sustainability, conservation, and a democratic approach to management of the resources. Not sure I can expect as much of the same from the current desired approach.