The shift would be gone forever in the span of half a season if batters would adjust to it and beat it. It's astonishing to me to watch a batter ground out or line out into a shift (or strike out against a shift) while they are giving him a bunt single. These guys in the show have been playing the game for years at the highest level, so they can take the ball the other way if they look for the right pitch to do it with.
Baseball has become a strikeout/homerun-or-bust game and that's a big part of the problem.
It's because players get paid more to hit .210 with 30 home runs than if they hit .300 with 10 home runs.