I agree, it was close enough to call a swing, and certainly not egregious. Still, in a WS game, go to the first base ump is there's even a hint of doubt.
I don't want to sound like a meatball, but this thought has crossed my mind. Being supremely confident is a knife that can cut both ways. I actually think the team took its best ABs against Kluber. They knew he is nails and tried to work him. A lot of hero mode tonight.