Quinn path is still hard locked for DIK MCs only, but if you don't care about Quinn then I agree, DIK path is making less and less sense these past episodes.
Sorry BBC, but the last PT I made here with permanent Neutral affinity disagrees.
Quinn is the most disrespected character when it comes to choices and affinities.
You can spend half the game avoiding her, then decide to smoke a joint and fuck her on the roof. Or spend even more time avoiding her, and decide to help her out in the middle of the street, which also leads to sex. Or avoid her completely for the entire game, and have a threesome with her and Sage. At no time the affinity was taken into account.
While "creating a relationship beyond sex", which has happened to her, it also doesn't need DIK choices or even DIK affinity for her to end up being an option for the "others" in the final decision.
The only thing that ends the MC's relationship with her, if not for your lack of self-initiative with Quinn, is continuing a relationship with Jill.
I think some side girls will become LIs even if they don't have RP. With that CHICK side of Sage coming up in season 2 I think Quinn, Lily and maybe Riona and Camila will become new LIs to make up for the lack of LIs for DIK MC.
I don't think you necessarily need to be DIK to date them, but a DIK MC will synergize better with them.
That's what I think too, with the end of this season and the way the last decision came out.
Thinking on the logical side, only. If the players who prefer the MGs have already made their decision and "closed" that path... What's left for those who preferred the "others" option? That would be a logical answer. Raise the "status" of these secondary girls. And personally, I very much hope that this is the case. But since DPC loves to destroy my dreams, I try to keep that hope down.