Restoring a Modern Mac Laptop from an External Backup Drive
I think the 'modern equivalent' of your anticipated disaster recovery scenario could still be done by CCC, with caveats.

Receive new machine, ready with Recovery partition &amp; brand new OS, clone CCC boot partition back to new boot partition. Assuming parity with machine/drivers etc, i.e. like for like, then I foresee no issues.

The same maybe couldn't be said if the new machine was different, newer - as you cannot anticipate the new architecture - for that you'd need Time Machine, to be certain.