Geoffkit,
Yes, I think I follow! The reason the specs matter even if an amp or other component sounds good in a showroom is because that is a limited time audition in an environment different from your home, and anomalous specs may tell you there will be dissatisfaction over the long term when you must live with a component. I expect that Stereophile runs detailed measurements and discusses them at length for just that reason. By your logic, they are wasting their -- and our -- time. I don't think so . . . .
Neal