This line of thinking emphasis the eschatological aspects of Our Lady's role in Salvation History. And in considering the Dogmas of the Immaculate Conception and the Assumption, rather than getting all tangled up in the sort of legalistic issues of whether "falling asleep" in in every instance the "wages of sin" or of the nature and meaning of original "debt" and original sin is, we can see in Mary the "coming true" of all the promises made to us.
There "will be a time" when the blessed are sinless and the scars of their self-inflicted wounds will be made glorious. Our Lady is "currently" sinless. There "will be a time" when soul, united with resurrected body, the blessed will know and enjoy God, within and without, with perfection piled on perfection. Mary currently knows and enjoys God with all bliss and perfection.
Our Lord is God's promise to us, and the fulfillment of His promise. Our Lady, I think, is first and chief among the recipients of that promise.
Beautifully said.