Why didn't Vitiate go after Exar Kun's spirit?
I was rewatching the Old Republic timeline when it told the tale of Barrel Ovair and his victory over Naga Sadow. Gnost makes it clear that the Ancient Sith posed a threat to Vitiate's plans for the early war against the Republic, yet we know that Exar Kun is canonically more powerful than any of the ones that came before. Why didn't Vitiate send a Sith force or a Jedi pawn to incapacitate his spirit before his eventual loss to Luke's NJO? Would Vitiate's Sith have been capable of besting Exar Kun on Yavin, what were his reasons for not taking him out?