Playing again I was reminded of the one main issue this game has : continuity between different character stories
To be more specific our main character is what's lacking, because the story is planned separately with each character/related characters, our MC will learn something important in one storyline, then have absolutely no idea what it is in another
I think I already made a comment about this quite a while ago, about how there should be more "walls" stopping you from progressing in one story until you've done another, so that you can coordinate which information MC is aware of in all storylines
It would take a lot of work, unfortunaly, both putting those walls there and modifying dialogues to fit the wanted results, it would also restrict freedom quite a bit, but I think it would make the plot a lot more enjoyable.