Your right but I think the claims have been over done. I look at a duneable as being just as sensitave as a regular over ride, only if you forget to grab the clutch at the end of a pass it wont gernade right away. You get a little lee way or forgivness. I wouldn't get one and plan on trail riding on it / back loading it on purpose.
My stock transmission doesn't sound bad when I push or roll start it. I dont role it in neutral and drop it in gear. I put it in second with the clutch pulled in, then role down a dune.