Converting from vanilla to wife-led marriage easily qualifies as a drastic change. Typically the husband secretly harbors his submissive desires, sometimes for many years, and after finally mustering his courage, surprises her with his confession. Duh. Do you think this may be why women initially reject the notion? Especially when you consider how men can be so convincing at maintaining their traditional masculine identity, that the wives hadn't a clue their husbands want to submit to their female authority. Of course one could argue that in many marriages the wife is already in charge, but chooses not to assert her authority overtly. In this regard, "changing" to a wife-led marriage might not represent that much change after all. But we'll save that discussion for another day.