Nicholas and Alexandra are certainly a mainstream, cultural phenomenon, which I think is a good way to put it. They are like some other royalty past and past present who almost become celebrity, although they lived far before the era when they could have been that. They just have all the qualities to become well known out in the world, and not just among royalty fans, as that's where so many Royals are left to languish. Love, power, tragedy, and wealth it might be added seem so glamourous to people, especially when royalty is added in. The idea of the card at least makes people think of the Romanovs who might not exactly be fans of theirs. I hope it wasn't done in a tacky way. If it wasn't it was probably a good idea, or at least a very interesting one.