The article completely overlooked one of the greatest benefits of a copy-on-write file system, which is snapshots. APFS is able to create snapshots of entire volumes near instantaneously, and is used by Time Machine for performing backups.
I wish they opened it up more and give us the tools to manage snapshots. Time Machine gives you no guarantees, it'll prune them when it sees fit, so I don't trust it. I wish I could give up my clunkier setup for APFS snapshots.
