Strike or HBP ?

[CecilOne]

What do you think about this? Batter is ready to bunt, but the pitch is so far inside it hits her in the leg. She had the bat out in front of her as if to bunt and it moved forward as the pitch arrived. My judgement was that the bat moved because she was off balance from trying to move her feet backward (away from the plate) to avoid the pitch. The defensive coach though it should be called a strike, no base awarded, because the bat moved as if she was bunting. My partner concurred with me that it was not an offer, but movement caused by trying to avoid the ball.

BTW, I insisted the coach tell me what his specific objection was before I would explain the call and before I would ask my partner's opinion.