I knew an guy that used to fly for an air taxi in ID. He hauled a lot of hunters to cold meadows but most of them pack trained to a different area to actually hunt. There were some guys that flew in there to hunt while based out of their planes and did have success so there are animals around.
Cold Meadows is much more closed in than either Copper Basin or Smiley Creek. It has rising terrain in almost every direction. A few years ago we took an emergency pit stop at Cold Meadows on a August afternoon. Due to being stupid and a case of get-there-itis we took off and skimmed though the draw at the south west corner of the strip. Didn't bother me a the time but now I'm older and...would probably do it again, maybe
If your looking for a place to take your gun for a walk with the best chance of seeing few people and the possibility of a successful hunt then I think Cold Meadows is a reasonable choice. Most other places you'll have neighbors.