Had to look to see what you were talking about. Your correct on buffers importance and it is apparent you have little understanding of the rules on RMZ's and in particular what is called R map. Logging to the edge of a stream ended in the early 70's and RMZ's have been greatly expanded since.

Now that the RMZ trees left blow down a lot is true and other things but TF&W helps but also hurt. To harvest with the expanded buffers ( draws not creeks ) you yard short, which means more roads and cost thus the clear cuts are promoted as one thing but are another as to acreage.