Obstruction Rule

[SSCoach]

The question is this:
Batter in the box, not now, not ever showing bunt... Batter after batter, never! showing bunt. Players are ASA, U-10 Girl's. Defensive team lines up proper infielding positions and lunge, two-three steps at a minimum in, and towards the batter at every single pitcher released ball. Is this not obstruction as the defensive "bunt technique" is being used as batter diversion and interferes with the batter's designated sight-line? Is this obstruction??? Please help... Have game with team today at 6:00 p.m.