This evening I fully reset my whole smart home including my Hubitat Hub C-4. My hub has never been reset since it was first installed in 2017.
Am I right in thinking that it's no longer a mandatory step to register the hub? I was able to skip the registration step. (FYI - Obviously I have since registered the hub via the Portal)
If so... this is really great work to untie the previously mandatory cloud element during initial setup. I once read a Hubitat review from the past that challenged the "100% Local" claim because of this initial cloud registration.