I wouldn't say that what pitchers do this series has no value, but I also don't think that a pitcher is going to win or lose a roster spot based solely on what he does this series either. Cora already has it pretty much figured out. If there are still any guys on the bubble, I suppose this series could be the deciding factor.
That said, we are not facing the Guardians in the ALDS. I think Cora already knows who matches up best against the Yankees and the A's.