So because something "unwanted" happens to a possible LI in a game, that LI become uninteresting for you? Does that mean you discard any girls that have something unwanted in their baggage?
Did you actually play out this scene in the game, or do you base your reasoning on what you see people write about it?
I would say that is pushing the story forward.
In just about any game you find the creator introduce new characters for the protag to have "random sexual encounters" with while the main story and main characters get put on the back burner. Could the creator in this game been a bit more focused on what get introduced and how? Sure, but how he handle the main characters doesn't doesn't differs that much from other ones when it come to "how fast you can do them".