I'd agree the game has some flaws - another example is how Rachel being interested in sleeping with more than you is tied pretty directly to the watersports stuff.Honestly I played SL, and I didn't care too much about that. As I felt like the game ending up forcing a lot it's renders on some routes while leaving the other really bare. If you don't go with the femdom path, you basically lose more then half of the character + a chance with another girl. I much prefer a harem that doesn't lock you out of a full harem just because you don't enjoy a certain fetish.
That's why I used Bella as my example - I think she's the best example in that game, where you get fundamentally different interactions and events and a different relationship dynamic depending on your choices. One of the more interesting ending sequences of SL comes if you don't pursue Mrs Smith or Liza at all, and have a dominant relationship with Bella - you end up with a 3 person relationship where Bella is submissive to both Rachel AND the MC. I like that the game offers you fundamentally different relationships with some characters in playthroughs depending on your choices. If anything, I think the problem with both the 'likes to share you' Rachel path and the 'femdom' Mrs Smith path is that they play out like bonus content: you get a certain relationship with each character, and if you make the right choices you also get extra scenes.
In contrast, with Bella you get fundamentally different and incompatible storyline and sequences depending on whether you control her or assist her. In one, she surrenders and you have a strong dom/sub dynamic, in the other, she's trying on wedding dresses and wanting to have a family.