What to make of Biblical mega themes like Passover or the scapegoat if penal substitutionary atonement is completely denied?

All throughout the Bible, in too many instances to list, there is a meta narrative wherein the sentence of a righteous judgment is avoided by the sacrifice of an innocent: The innocent bearing the sentence of the guilty. Examples of this include the Passover lamb in the Exodus story, and the scapegoat of the great day of atonement. Up until the Lamb of God who takes away the sin of the world put an end to sacrifice, by becoming the once for all sacrifice, those sacrifices were of lesser beings for greater beings; lambs for people, etc. Jesus turned that around and made it the sacrifice of a greater for the lesser, but it doesn't seem as though the underlying idea of punishment for sin, retribution if you will, being transferred from one being to the other as disappeared On the other hand, I know that there are theologies which reject the notion of penal substitutionary atonement as being unbiblical. What do those theologians do with Passover and the scapegoat, for example??