That's definitely not a major focus though. I felt it more as a sick reveal and confirmation (there are a couple times up to that point where she briefly has conscious control) of what's really happening there.

That being said, the overall effect of the narrative achieves a very similar goal. It's just not a victim's story, it's a perpetrator's story. Bear is a fucking coward, and his passivity, willful ignorance, and eventual outright complicity make him a villain. This is a story about how a guy whose initial motivation is not, technically, to cause abuse, is still every bit as much of an abuser.