In a play where Bunting was skating, he was seen falling, but that is not the issue here. The forward was seen exaggerating his motion of moving his foot, in a possible attempt to hurt Brad Marchand.
It was indeed a reckless play that could've had extreme consequences shall it happened, but I am not convinced that Bunting's intent was to injure Brad Marchand to that type of gravity, instead, I think Bunting lost his motion and really meant to just fall.