It's touted by the people who use the word "just" a lot.

"Just use postgres" "Just use sqlite" "Juse use a monolith" "Just use sftp" "Just use an ec2 instance"

Usually these people have flunked out of the school of (distributed system) hard knocks. They couldn't hack it and are retreating to familiar.

The funny part is when one of those people fluke themselves into senior management when their saas takes off.

Inevitably they have to suck it up and hire experts in the same technologies that "no one needs".