Sacrifices are a “memorial of sin” (Hebrews 10:3). Every morning and evening, Israel’s sins were memorialized before Yahweh, even as they were atoned for.
Satan accuses “day and night” (Revelation 12:10). He is the accuser, and at every morning and evening sacrifice, he has fresh grounds of accusation.
Satan cannot be cast from heaven until the memorials cease.
Memorials cannot cease until there is a sacrifice that actually removes sin.
Christus Victor is not an “addition” to a “sacrificial” theory of atonement. A sacrificial theory of atonement is a Christus Victor theory.