You are right. Sometimes these flankers just look like a pathetic profit generating excuse. When its done properly its tolerable and even good. But most of the time its just another excuse to make some money out of us consumers.
I own DHS and i only wore it a few times. Its very suitable for Malaysian weather but the ginger note in it is too dominant. I don't know why but it can get really cloying sometimes. Longevity is quite disappointing too.
Maybe DHC didn't do as well as expected so they churned out DHS. But i do suspect they were trying to compete with Chanel's Allure line. I only tried DHC once so i can't judge if its better than Dior Homme.