From the article, it seems that it's going to be the dealers who list the cars on Amazon. This means all the hassles associated with going to dealerships, plus

From the article, it seems that it's going to be the dealers who list the cars on Amazon. This means all the hassles associated with going to dealerships, plus Amazon gets a cut and tells dealers how much to mark up cars for optimizing whatever they want to aim for. How is this better for consumers exactly?