If that's true, then the title is misleading and clickbait-y.

Edit: Changed basically the whole comment, as you're right. I looked at the Blog, and it does state in his FAQ that he had a backup. Which frankly makes a significant part of the article completely BS - as it makes multiple heavy implications that he didn't have any backup.

This apparently happened with “no explanation and no recourse,” putting “terabytes of family photos” and their entire message history out of reach, as well as preventing the ability to sync work across devices.

He has copies elsewhere, so why would he be worried about losing access to this data.

Also, the end of the article discusses not storing all your data in one place...

If you store your photos and files in a single place, it’s a good idea to back them up to multiple locations to protect against something going wrong. But with how integrated devices are these days, it’s hard to avoid having all your apps, purchases and media within a single ecosystem. In cases like that, there’s not a lot you can do.

So it wouldn't be wrong of most people to walk away from this article with the assumption that he didn't have a proper backup strategy.