So what you are saying is that regardless of the precision of the actual underlying rating, the accuracy of the rating is only valid to the 5 stars and any implication that one 5 star rating is better than another is invalid based on the error implicit in the test results due to the “power” of the testing completed. I can understand this complaint and if this is what the acronym salad agency is angry about then they are doing a very poor job of explaining that.