"I think most of the Yankee success stories were also helped by the deeper lineups. You can't pitch around everyone, so once pitchers have avoided Judge/Stanton/Sanche,. they might not have even strategized on how to handle the Urshela's and Tauchmann's s of the world, and those hitters feast on lesser or a complete lack of preparedness."
Also, a great lineup just wears down pitchers. It's hard enough trying to make perfect pitches to the heart of an order -- the bats that the game plan says "don't let him beat you" -- even when you get them out. But when a hurler gets hit (sometimes on good pitches), it only extends pitch counts, and then elbows, shoulders and legs grow tired.
As a result, sometimes fat pitches down the middle to the bottom of the order aren't always mistakes, but intentional offerings in the hopes of whiffs or weak contact. That's also a time when hitting becomes contagious...