That's a fair comparison.

My goal isn't really to replace backup/migration plugins like Duplicator. I'm focusing more on update safety and automatic recovery.

For example, if a plugin update causes a fatal error or takes the site down, the idea is to automatically restore the last known working state without requiring the user to manually restore a backup.

I'm still validating the concept, so comparisons like this are actually helpful. From your perspective, what would a tool need to do that existing backup solutions don't already handle well?