Nobody is saying that they aren't! They're saying they want the GIRLS they can't currently use in their teams to be usable in their teams by having a new version with upgraded star level. Any 6* is already automatically qualified to be in anyone's team. Why would anyone want two (different characters) of the same GIRL in their teams? Even if Black Baccara was your waifu, which version is the waifu? Aren't you going to get in trouble with one Black Baccara for liking the other one better? The entire point of having a harem is variety.