Tora Productions are veteran in this adult game space. This game isn't their first rodeo and won't be the last either. It is just non-constructive to give the same feedbacks that others have expressed in the past and been answered with over and over again.
It is the player responsible to learn about the game that they are playing, what the developer is about so that the player expectation aligns with the game experience, and not the other way around, placing the player expectation over the game experience.
This game is already a step ahead of Tora Productions other titles, where usually there is just one MC and one LI. This game has 3 MCs with 9 LIs ( 3 each ). If a player happens to like 4/9 LIs, then just play it 4 times. IMO, making the MC able to romance multiple LIs at the same time actually just dilute the emotion, feeling and relation compared to a focused single LI. I don't even know what is the actual correct terms for it, but that is the defining or differentiating element of Tora Productions work, the interpersonal, intimacy between the MC and the LI.