It may be said that in the first place Emperor Tenmu should not be met with the curse of the Kusanagi no tsurugi if it was proper treatment that the Imperial Court took the Kusanagi no tsurugi in charge after the case.
そもそも、事件後に草薙剣を宮中で預かったのが正当な処置であるのなら、天武天皇が草薙剣の祟りに見舞われるはずなどないとも言える。