It merely says there is no boat launch. It does not say that that you have to get you boat over or under a locked gate, then walk about 1/4 mile on a fairly nice gravel road uphill and then steeper downhill to the lake. Certainly more info on this site than WDFW.
If you head a little west of the locked gate, there is an opening in the fences and you don't have to go over/under the gate.
Freestone - Why gravel or pave right down to the lake? That would make no sense at all. If you stay to the right at the lake sign, it is an easy grade, mostly gravel, to the lake. What "scrabble"? The sand hill coming up can be tough depending on what you are hauling. They should probably do the same at D---y, eh?
There are plenty of places you can drive right up to the lake. If that's what you want, don't fish the Nunnally chain.