As long as you have a signature with gifs in it, I'm going to take your complaints about post length with a grain of salt.
It's not taken away. It's still there. It shouldn't be an issue to have different choices result in a different gaming experience. We shouldn't expect to keep Eric in the game, and still have the same content with all of the women we had before. We shouldn't be able to have a truly romantic relationship with Lisa and still bang Alice on the side. And some of us could care less about Olivia as a character. She's not even family in an incest game.
DS knows that a lot of people will consider the game over when sex happens with Ann and/or Lisa. So he's going to delay it for as long as possible. He's literally grasping at anything he can to delay that happening, and people keep falling for it. Expect the only real progress to happen with Olivia, Kate, and recent and future new characters.