It’s difficult to say what is wrong with Lena’s alternate routes. I personally like Lena’s character and I can also connect to her, even if I am a male. She is a hard-working young girl and cares for her family even if she has a complicated relationship with her mother. She has clear moral believes and maybe she is a bit too much under a bad influence of her friend (Ivy).
With this in mind a lot of Lena’s alternate content doesn’t fit for me. I like the Lena / Holly story and also like the Lena/Louise content, but the rest is just a loss of time. And it’s not because I think Lena should only have sex with Ian, it’s because I really dislike the character of Robert, Mike, Jeremy and Axel. Robert is a complete idiot (I know the Robert fan boys are coming after me…) and Lena is completely out of his league, so can’t image why Lana should have sex with him, even if she would be horny af. For Mike / Jeremy Lena is just another trophy. And Axel is just Axel, Mr. Perfect Asshole.
Also, the story with Seymour leads to pretty predictable ending. And maybe most disappoint thing is, that all these stories lead to Lena being on the weaker end. Okay, I don’t know how Eva Kiss is planning the ending of the game, but I don’t see anything of intriguing especially compared to Ian’s possibilities. And this is the big difference, on Ian’s side all options are somehow interesting, some are better (Lena, Holly, Alison, Cherry) some are more conflicted (Emma (fucking the girl your best friend is in love with), Cindy).