If you don’t a little more feedback, maybe the act of redeeming someone should be rooted in its own separate move that fires off of a successful Decisive Action?
My thinking is this, Luke wins the duel against Vader on the Death Star and casts aside his weapon, clearing his Dark Side in the process (which I’d argue is the major thematic component of the move, the choice between vengeance and mercy, right?). That isn’t the act which redeems Vader, but rather the act which redeems Vader could be viewed as Luke spending the Influence he has on Vader to turn him to the light side for his final act.
So maybe a successful 10+ on TDA could look like this:
You make a move to end the fight. You may either deal your lightsaber’s harm to the opponent OR clear all darkness and take influence over your opponent.
And that could trigger a separate redemption move that could incorporate the other part in TDA as written? Just my half awake ramblings, I just figured the redemption attempts usually follow the winner sparing their opponent.