I'm not concerned with independence from the database _implementation_ but independence of the database schema from any one consumer. This is one of the more interesting things about tools like Hasura/Postgres/Postgraphile in my eyes, they encourage you to separate frontends from the backend early on. That might be one team to start, but you can divide labor and add more services without rearchitecting like you would if the database was controlled by ORM from a single front end.