There is a lot of agency. Just because there is one area which is integral to the basis of the story - which is the premise of the story - which is the whole plot device of the ENTIRE story - that you don't like is that the two girls are inseparable... that doesn't keep a player from using their agency.
It was stated since day one of development that there would be no repercussions from any relationships with anyone (at least until possibly final development) - so every player was free to have the MC be involved with anyone that was available to do so. The only restriction from day one was that Macy and Denise could not be separated. It was made clear, it was warned to players if they were about to make a decision to jeopardize that, and it's not like players couldn't make a decision on what they wanted to do.
You made the false accusation that this "may as well be a KN in reality." And you have to admit you were hyperbolic and exaggerated simply because you can't get everything you personally want.
In addition, players have the final agency to just say "fuck it, this game ain't for me. I'm out. There are 15,000 other games on F95 that I should be able to find one that is exactly what I want to play."
This game is nearly the absolute opposite of a KN and you know it.
The MC can have an intimate relationship with any combination of the following bullets:
- Denise and Macy
- Brooke
- Sierra
- Sarah
- Zara
Or they can choose to not have any with any of them. That's 32 different intimate relationship combinations throughout gameplay, on the simply binary of Yes=intimate, No=not. Within each of all the routes, there are choices which change how some scenes playout and what activities in future scenes come about based upon previous decisions. There are even multiple relationship endings, depending upon certain decisions in the game.
Look, it's one thing to not agree with a developer's choice on storyline and to have an opinion on how a story deals with character development, tension, conflict, interrelationships, and resolution --- but to use hyperbole or use blatant lies or just plain make up shit shows more about you than it does about any argument you have about their decisions.