> non-technical people

It's also better for the technical people. If you self host the DB goes down at 2am on a Sunday morning all the technical people are gonna get woken up and they will be working on it until it's fixed.

If us-east goes down a technical person will be woken up, they'll check downdetector.com, and they'll say "us-east is down, nothin' we can do" and go back to sleep.