Hyperbole much? MySQL replication was workable before GTID. GTID simply made things a lot easier. GTID was hard to work into existing DB's at places like Faceb

Hyperbole much? MySQL replication was workable before GTID. GTID simply made things a lot easier. GTID was hard to work into existing DB's at places like Facebook, but it we managed to get things going without a DBA in several multi-TB databases (sans downtime). GTID is over 4 years old at this point. That's not relatively new in the tech world. Especially with the pace of things like Kubernetes and containers. There are 3rd party additions to Postgres, too. pg_rewind was written by eBay (?) to address the obvious shortcomings of repointing primaries and replicas.