I agree with you. Playing Lena is so easy and not challenging at all. Once Lena agreed to work with Seymour her financial is secured already. Whereas Ian gameplay is pretty much hustling and grinding (writing books, sparring gym, keeping the intern job, and many others).This game would have a much faster development if it only had Ian as the protagonist, I already said it once: for me the episode ends when you start playing with Lena, almost everyone here is playing with a lesbian Lena because the characters in her stories are all uninteresting (or people don't like to go after man playing with a woman lol).
But if you replay GGGB you will realize that in the final episodes the game doesn't have a very nice plot, everything is sex sex sex sex sex sex until the game suddenly ends, ORS has a better story but that we already had an experience playing in GGGB... In future games Eva will not bring multiple protagonists for sure.