re: Softball question: why square to bunt and pull back to swing away

Can't speak to LSU and Bianca Bell but here's why We do it in travel:
*pull in the defense or to read the defensive shifts..
*pitcher is dominating our big swings, the show-bunt/hit shortens the swing and increases the odds of punching a ball with pop...
*if a player is swinging and missing it puts both eyes on the ball.
*or, I'm just screwing with the other team.