Bro, if you pursue a DIK affinity every Main Girl except Sage will DISLIKE you and REJECT you sooner or later (and Josy will do it SOONER).
That's not the point: they dumped you and you're missing all their episodes 5-9 content. Maybe you'll end up with Maya or Josy towards the end of the game... (you will find out in 2028, I guess), but... who cares now.
DIK route is a "I wanna bang Sage and all the bitches" gameplay. Chick route is a "I wanna have a relationship" gameplay.
I think this episode proved that if you're a massive dik, it means you can officially go and have a relationship with the side girls, meaning (from this expisode) Quinn or Rio. Both those girls got scenes where if you took the "others", they'll let you in sooner or later.
And, for Josy, there are scenes sprinkled through that she's not really a CHICK girl. She's more a NEUTRAL, but maybe into DIKs. For whatever reason, she's with Maya right now, but I do hope we can get her alone. As you say, i's probably a late-game thing, unless Dr Cake makes it possible to ruin the relationship of Josy and Maya in a more robust way.
I like that the "others" route isn't just about fucking around, but pursuing other girls that aren't considered romantic interests. I still fuck what I can on that route. But I still think there'll be choices to make to go after this or that side girl.