On the note:
Known Limitation - The automatic use of the security constraint is limited. The Redis Enterprise must be named rec for the constraint to be used automatically. Use the cluster name rec when deploying with the OperatorHub
one may add:
or ensure that rec yaml  is using the proper rec service account by setting  "rec.spec.serviceAccountName: rec" and "rec.spec.createServiceAccount: false" into your yaml definition.
If you require a different name, you must grant the SCC to the project namespace.