Sir moody, I fear you are showing a certain ignorance with the game itself:
1. Each crate can take 2 bodies
2. Aside from the 2 strippers (not hookers), there is a guard who patrols the room.
3. In the rooms adjacent where the guard also patrols contain another crate and a closet
4. You do not need to kill a npc to put them in the crate, knocking them out has the same effect however the main downside is that it is a comparatively drawn out choke hold and if a second npc stumbles upon it your cover is blown immediately.
5. The crate is also usable as your own hiding place, the player can climb inside them, meaning they have utility outside of body removal.
I also dont think you are giving the game enough credit towards linearity, I know of two other methods of covert elimination in the level that the player could partake in: either wait for him to go under a faulty disco ball and turn it on to drop it on him, or you can just knock out the guard in the urinal, hide him in the broom closet, garotte the manager when he comes to take a piss and put his body in with the guard. Both methods are just as covert and both are no harder to pull off than the hidden room.
I would mention that the disco ball option becomes very hard if you try a "silent assassin" run, trying to get to the disco ball without being spotted is rather hit or miss, yet the other 2 options are technically impossible to SA.
"This whole scene is narratively a setup to show you how bad the manager is but also acts to "excite" the player in the act of voyeurism" That excitement is an outcome not an intent (it's also highly subjective, not every straight man gets a thrill watching a greasy slob feel up a stripper against her will). The creator could just as easily only wanted to creep out the player and give them impetus to kill the man, the titilation merely an unimportant side effect, what makes your interpritation any more correct than the one I just proposed?
Edit: For the longest time I thought you were ironside. one of you guys might want to change one of your avatars
Bookmarks