Yeah bro, letting other men have sex with your women? Only cucks want that. The harem audience doesn't want to see other men fuck with their women... and if the dev really wants to create a harem game and attract the harem/vanilla audience, it's not in their best interest to add those scenes. If they include scenes where other men are with the girls, they're going to lose a large part of the harem/vanilla community. Many people (myself included) as soon as they see that a game has content that includes NTR or NTS (sharing the girls with another man) will ignore the game without even playing it. With the number of games out there these days, it's easier to avoid a game than to play one with content you don't like...