Network Policy does not block block traffic for OpenShift Routers

Issue

After deploying Network Policy objects to block IP addresses from access to the OpenShift *.apps Routes matching the following:

  name: block-ip
  namespace: openshift-ingress
spec:
  ingress:
  - from:
    - ipBlock:
        cidr: 0.0.0.0/0
        except:
        - 100.0.0.1/32.   # Example
  podSelector: {}
  policyTypes:
  - Ingress

The Network Policy is not enforced and the IP addresses can still access the Routes provided by the Router.