I see your point.
Funny thing, last night I compared the speakers I have at home with others to see if Crutchfield's tool is able, at least, to reproduce the characteristics of the speakers I know well and listen to at home almost every day. Well, I can tell you the tool is pretty accurate. For instance, I own the Elac UB5, Definitive technology D11, and KEF Q350. I compared them among each other using their tool for fun and that was pretty much what I hear at home. The warm sound of the Elacs, the super extended highs of the DT11, the deeper bass and laid back mid-range of the KEF...etc. I never found myself saying "oh, that's way off". Try it yourself for fun and see. It's fun at least! :D