...it’s also not possible to delete those snapshots without a special entitlement granted by Apple.
Do you know how that reconciles with
Additionally, CCC allows you to find and delete specific snapshots with ease. Simply click on a snapshot in the Snapshots table, then press the Delete key to delete that snapshot.
The "Help" file for CCC 5.x says: "CCC starts with sensible defaults, but you get to decide how frequently CCC creates snapshots and precisely how CCC will retain snapshots over time."
To me that sounds as if CCC is creating its own snapshots. piggybacking off of Apple's new feature.