I disagree, at least with respect to bondage. This scene is WELL past anything that has gone before.
The closest analogue to it from TV that I know of is the nude bondage scene in an episode of Law and Order in which a woman is found naked, bound and gagged in an office after a workplace rape. It was very brief scene, lasting not more than 5 or 6 seconds, and didn’t show us much of the woman’s body.
Even movies don’t always match it. Frex, in “Birthday Girl” you have Nicole Kidman tied to a bed face down and naked, but she’s only from face on through the headboard, and in a very narrow focal range, which means her face was sharp and clearly defined, but her buttcheeks were just two round blobs behind her. (See the Jennifer Anniston “nude” cover of Rolling Stone for a similar effect.)
And that was in an R-rated movie.
Very often, when bondage scenes occur on TV, they are dimly lit, sometimes extremely so. The classic example was a scene of a woman bound in bra and panties by a serial killer in some defunct cop series or other. She was kept in a hidden room near a bathroom, and the few scenes you saw to establish that she was actually there, and that she had been rescued, were so dark that you literally could not make out the woman’s features or in fact any details other than the outlines of her body. You had to take the script’s word for everything, because you could see virtually nothing.
Of course, a serial killer might really keep a prospective victim in a really dark place, but that doesn’t work dramatically because instead of going, “Oh, she’s very helpless and vulnerable and in great danger!” you go “what is that? Is something moving? I can’t see a thing!”
The scene in Saving Grace was very well lit, lengthy, we got lots of images of it (Hunter’s butt was in fact intrinsic to the plot, due to what was written on her buttcheeks) and was very, very lengthy.
There’s been nothing like it on broadcast TV. Ever. Hell, damn few mainstream movies with an R rating can match it or surpass it. If I were plotting it as a data point on a graph about the length, nudity and so forth of bondage images on TV, it’d be way out on one end of the graph without a lot of other dots (probably none) anywhere near it.
So, no, I don’t think it’s a typical example of bondage imagery on TV. And I’ve seen a lot of it.