I suppose that would depend on how that encounter would go, If you teamed up with Vaylin, then I would argue, yes.
In some of the cut dialog from KOTET after the Odessen fight against Vaylin, there was some lines in which Vaylin does come to the conclusion that Valkorian has been manipulating everyone, and in my mind, sounds like she's begging for the Outlander to spare her so she can attack him.