Is it just me or is this literally the worst architecture idea that's popped up here? I've seen this done in a few large projects, including some extremely famo

Is it just me or is this literally the worst architecture idea that's popped up here? I've seen this done in a few large projects, including some extremely famous products, and it produced endless grief for the engineering team - and ultimately the organization. Among other things, it makes performance scaling much harder to achieve, makes software deployments really scary, and makes it almost impossible to migrate to a different database vendor. It is true that it can be done. But I really don't think you want to.