My friend, Cora sent most of the trash he won't use in POs. You won't see Johnson-Pomeranz-Hembree-Kelly-etc going in game 1.... or 2 or 3 etc.
If I were the Yankees, I would be worried. The Sox made 6 runs and could have been worse with Happ and their titular BP on the mound.
It's a matter of perspective. In the end, the PO games have to be played and while the SOX are the fav, anything can happen.