I've only played it once, and while I absolutely love the game, the world building does feel a bit puddle deep. It's partially because we interact only with 2 settlements, the druids and BG. There's no half orc tribe being really half-orcy shamanistic. There are no halfling village being deeply concerned with someone stealing a family recipe.
It's also not something the game set out to do. The focus is in three main areas, exploring origin characters personal story, map exploration, fun combat. It does those things really well I think. That's why the generic Tav and the rest of the world is a bit of a puddle, you can only do so much. I would've loved to see more thematically and lore appropriate race, class and faith based characters, but the scope has to end somewhere and they certainly scoped the game wide enough, the depth is in the origin stories and not in the world building.
