Hey Shoss, spot on! I agree 100% with that.
I think JetBackup 4 worked better when using the official cPanel data structure, but I wanted to stop managing my own backup server for various reasons (keep on reading) and so I switched to JetBackup 5 so I could use Hetzner StorageBox but it was very unreliable (though the issue likely because it was BETA version of JetBackup at the time; not an issue with Hetzner StorageBox), and so I switched to Wasabi (again, BETA version which worked fine to start with), but then had the same issue as with StorageBox. But when I found Hetzner StorageBox released Stable version, I switched back to that, and again, it worked fine.
Hetzner StorageBox now works much better than Wasabi, but JetBackup with Hetzner StorageBox has issues from time to time too, just nowhere near as much as when using Wasabi. For some reason, Wasabi caused massive high CPU usage. That must be issue with the JetBackup 5 software causing and I found Wasabi is not fast at handling lots of small files as fast as Hetzner StorageBox does. Hetzner StorageBox seems better.
But you cannot beat backing up cPanel accounts with Rsync via SSH to a dedicated server. But the trouble is then it’s just a standalone server and no Cloud, so if serious issue could lose backup data and have to start them again; cost too much to back up the backup data.
That’s why I love using Acronis with their storage, but it has some of the issues I mentioned. None of the current solutions are perfect.