It's a video game, and the main point of a video game is to have interactivity between the player and the game.
Moreover this game was branded as a porn video-game, so people expect at least some interactivity with porn scenes.
One way to do it, it to give some context to those porn scenes and to link those porn scenes to the story.
For example, I think that the recruitment scenes (expecially the one with killysion) were without a doubt the best scenes of the early access, because we had context.
I know that I could fuck this hot redskin alien waifu because I helped her to get what she wanted.