It's not about the playstyle, I know Eva is super good with intricate storylines. It's about the content: playing with Lena and not being able to have a boyfriend and then create all those (fun\hot) situations where she ends up cheating (for n reasons) just strips the game of a lot of fun (for me).
Yeah you can play and decide she can go with 1,2,3,.. partners and..that's it. I just find it way more boring that what it could be.
And this is on top of Eva being "softcore" with content (all characters must be likeable, no forced situations on main characters, etc..) probably to appease Patreon ToS. I know I'm picky for content but in my opinion it's one of the few (if not the only) areas where she (or he?) should improve.