Of course not! I love those villains and now they have Xehanort's power? They will be awesome bosses to deal with Also Felixx I think it might have something to do with Lauriam's actions way back into KHUX.
@Kingdomhe Oh it does matter. In DDD Xemnas told Sora that thanks to him they knew what candidates weren't worthy to a part of the 13 Darknesses. Whom they couldn't trust or who were too weak. And yet tons of those who supposedly weren't trustworthy return. That's kinda a retcon if you ask me.