Agree. Its more confusion. PVC / PV are native to k8s not something part of statefulsets. In fact you _probably_ only need to use Statefulsets for databases. Which is probably going to be abstracted away with Operators.
It's more about roll forward/backward and services with a master+replica or leader election. That PVCs are common in stateful sets is more a symptom than the cause
Yea for sure. Thats why I dropped the term database because thats the exact scenario ( master / replica ) where pod consistency naming,dns, network etc is important for StatefulSet.