Vrsumo2017 Yes, would be nice and a unique feature! However, from a short-sighted business POV, bonus features would be added value for existing subscribers but would decrease revenue since the costs per scene will increase without attracting new subscribers. And I don't think anyone would pay extra for bonus stuff like for scripts.
In that BTS video https://www.sexlikereal.com/scenes/blake-blossom-and-laney-grey-interview-21699, there was a moment, camera placed between her feet, in which it appeared that Laney (the performer, not the character) would start playing with herself during the interview. Spoiler alert: She didn't, but that moment was pretty hot
I have seen some regular videos (maybe LustReality) that contained conversations between director and performers. Not sure if this is supposed to be a feature or sloppy editing. I don't think we need to see all the awkward stuff, but some selected bits or blooper reels would be nice indeed