Some games, like the Souls games can get away with telling more of a hint of a story, and if you completely miss it, no one will blame you, it's that hidden sometimes. But with Baldur's Gate, we're expecting a VERY obvious story, and having it hidden just cannot happen. No matter what playstyle you're doing, the story should be somewhat in your face imo. I have to believe though that this will change, and that playing a certain style won't lock you out of 90% of the story.