Unfortunately, it's the reality of a game based on a very deep tabletop RPG. Pathfinder tried to have a lot of information in-game and while it's awesome, there's so much that it can get insanely overwhelming. I think Larian wanted to keep it simple for those that were new, and figured the people wanting to get into it would either google, or replay a bunch. I imagine that's also why respeccing is so cheap