I think there is a difference between building the main story and building the lore of the world and bringing the world to life. I cant expect all of the 300+ quests to be integral to the development of the main overarching story. Some of them will be people living in the world who have real problems of their own. Their garden is constantly attacked by squirrels, a child who lost their parents, or a City guard needing extra shields for the new recruits, this brings the world to life and you get a feel that "real" people live here. I dont want or need every quest and battle to be an epic struggle.