I think it serves the film best as brief flashes, just enough to make it clear what’s going on, but not enough to function as an actual torture porn clip.

Agree. My partner list this film as one of their top scary picks, mostly due to this scene.

I feel it is perfect the way it is. It leaves a lot to the imagination while still leading the viewer in a direction of true horror.

Gives me shivers just thinking about it.