I love my Gunsite Scout, to the point where it is essentially my only hunting rifle. I do not use it in scout configuration, though. Basically, I like that it is a stout carbine with iron sights. It is handy as can be for getting in and out of the truck and getting through brush and whatnot. I do not discount the general concept, I guess, but for me it doesn't matter. I also happen to really love the detachable box magazine.
That said, Cooper is viewed by many as the high priest of American Gunnery. I don't want to take away from his accomplishments, but at the end of the day he was just a guy. A smart guy, to be sure, but definitely capable of being wrong or off base.