Yes that seems correct - also would add the zigbee re-include is actually very easy so should preclude you from using those types of devices. Normally the Protect service would be fine - you'd just buy or upgrade a new hub and use the service to restore.
I kind of complicated things by suggesting that if you plan on having your system for years a good idea would be to have a spare on hand in case the hardware fails. Taking it one step further if you have the Hub Protect service you could do a "restore" to your spare hub and then take it offline. That way no matter what happens to Hubitat, Inc in the future you should be covered. Also maybe a good idea to fire up the spare hub (temporarily shutting down the primary) periodically to do another restore from the Protect service and maybe update the platform software. You could also do something like this without the Protect service but you'd lose your Z-Wave pairings and would need to keep some backup files offline.
This is a great post by @thebearmay describing the backups.
