I'll add on. The majority of the time guys are going the other way isn't to hit a grounder to move the runner up, it's because they are in a 1-2, 2-2 count and protecting the plate. Sitting back on a breaking pitch, while still being able to hit a fastball the other way. No batter gets in the box solely to move the runner over, especially one from 1st to 2nd, unless it's a sac bunt type situation.