the TUSC content is easy enough to add to a VC pack if you want.
It's not easy when 1) some girls don't have any scenes in those categories to begin with, 2) I like a lot of variety, so I would probably want to include more than one scene in any given folder, 3) I already have a very long to-do list of things I'd like to maybe eventually do with the basic VC packs, whether it be adding new packs, taking clips I don't like out of existing packs, adding extra scenes to existing packs, etc.
If I do anything with those categories at all, it'll probably just be copying all the clips from the default folders into the specialty folders, which seems way less easy than if it just worked that way automatically in the game. At this point, I don't even feel like it's worth the bother to do that (since I can see all those clips on the regular stage anyway), so I guess I'll probably just be skipping those categories that give it more flavor and make it more meaningful.
And honestly, it's a shame, because gym and massage settings are actually big turn-ons for me. I think if there was a big assorted folder with random clips of no one in particular getting fucked at a gym or spa, I'd probably really like those (and I'd probably enjoy adding some more of my own occasionally). But I don't think I care nearly enough to hunt down multiple specific scenes for multiple specific girls. If I start small and just do one scene for one girl, then that scene will be the only thing I see in that category until I add more, and I'll probably get sick of it. Having the default content (or category-specific content with random girls) show up at those locations would allow me the use of the locations in the game, while letting me add specific content at my own pace.
Anyway, it doesn't seem like the game is still being updated, so there's probably no point in giving feedback like this.