Whether the conditioning is physical or not is beside the point to me. The horror of this is that they are treating their own daughter inhumanely, cultivating a response that causes her evident discomfort just so they have a way to suppress her will. Physical torture might have been more visually horrific, but the extreme dehumanization that was shown here to their own daughter is the same kind that would be on display had Pacifica been physically punished as part of the conditioning. The point is they terrorize their child into obedience. They made her into their slave. It's disgusting no matter which way you cut it.