Fairweather, I believe the reason why WTA and other groups supported the FS plan chosen for the Middle Fork of the Snoqualmie is that that valley is a rather unique environment. It is a rare, lowland forest that hasn't been logged in over 60 years. Without the road it will revert to a wild state. The section of the valley above Taylor River is served by an excellent trail on which a great deal of effort has been expended to improve it. I've hiked that trail numerous times and it is quiet, except when you hear a truck driving up the road on the other side of the valley. Access to Dutch Miller Gap will require an additional 12 miles of hiking, or you will have the option of taking your mountain bike on the closed road. That will remain a viable option for many years I expect, as the Goldmyer people will probably help to maintain the road.
There won't be any more tailgate fishing up there, but there will be a wonderful wilderness experience for those who are willing to spend the time to walk or bike in.