I guess it has to do with the story not being too out of sync for different characters / continuity?It's not a good look seeing so many WIP coming soon screens. Even the sandbox has limitations that didn't go away, and you still have to do this complicated combo of actions when you've already done it before. Like what is so important to be working on that Debbie and Rachel's scenes are not complete?
Of course you could finish the storylines of Debby and Rachel completely to the end, but that would
- spoil some potential stories later on in the game for the other girls
- be kind of weird, that you could have a full on orgy with Debby and Rachel while at the same time could barely even look at the other girls.