It is very in the spirit of dnd, because when you play tabletop, your character backstory is very important, because it basically motivates you to become an adventurer. And a good DM will find a way to connect global plot with your backstory
The kiddies want to play pre-written soap opera anime plots. Few players have actually played D&D, but most of them have ideological expectations about narrative content. Larian is in full fan-service mode for what are essentially teen girls. Custom characters will get a couple of race/class triggers, but nothing else. Most of Larian's resources go into creating the cringey young adult content for this game.