Description of problem:
when cluster operator console is Degraded, we still report Available: True even console is not accessible

Version-Release number of selected component (if applicable):
4.8.0-0.nightly-2021-04-21-172405

How reproducible:
Always

Steps to Reproduce:
1. Set openshift-ingress-operator and router-default unmanaged, then scale down deployment/router-default to simulate a network issue
$ cat > version-patch-first-override.yaml << EOF
- op: add
  path: /spec/overrides
  value:
  - kind: Deployment
    group: apps/v1
    name: router-default
    namespace: openshift-ingress
    unmanaged: true
EOF
$ cat > version-patch-add-override.yaml << EOF
- op: add
  path: /spec/overrides/-
  value:
    kind: Deployment
    group: apps/v1
    name: ingress-operator
    namespace: openshift-ingress-operator
    unmanaged: true
EOF
$ oc patch clusterversion version --type json -p "$(cat version-patch-first-override.yaml)"
clusterversion.config.openshift.io/version patched
$ oc patch clusterversion version --type json -p "$(cat version-patch-add-override.yaml)"
clusterversion.config.openshift.io/version patched
$ oc get clusterversion version -o json | jq .spec.overrides
[
  {
    "group": "apps/v1",
    "kind": "Deployment",
    "name": "router-default",
    "namespace": "openshift-ingress",
    "unmanaged": true
  },
  {
    "group": "apps/v1",
    "kind": "Deployment",
    "name": "ingress-operator",
    "namespace": "openshift-ingress-operator",
    "unmanaged": true
  }
]
$ # oc get co | grep -e authentication -e console    // check console, authentication Available status
authentication                             4.8.0-0.nightly-2021-04-21-172405   True        False         False      5h45m
console                                    4.8.0-0.nightly-2021-04-21-172405   True        False         False      5h40m 
$ oc scale deployment ingress-operator --replicas=0 -n openshift-ingress-operator
$ oc scale deployment router-default --replicas=0 -n openshift-ingress
$ oc get pods -n openshift-ingress; oc get pods -n openshift-ingress-operator
No resources found in openshift-ingress namespace.
No resources found in openshift-ingress-operator namespace.
//wait until no pods in openshift-ingress  and openshift-ingress-operator namespace
2. after no router-default pod is available, check clusteroperator console, authentication status again
# oc get co | grep -e authentication -e console
authentication                             4.8.0-0.nightly-2021-04-21-172405   False       False         False      112s
console                                    4.8.0-0.nightly-2021-04-21-172405   True        False         False      5h43m
# oc get co authentication -o json | jq .status.conditions
[
  {
    "lastTransitionTime": "2021-04-22T05:53:12Z",
    "message": "OAuthServerRouteEndpointAccessibleControllerDegraded: Get \"https://oauth-openshift.apps.qe-ui48-0422.qe.devcluster.openshift.com/healthz\": EOF",
    "reason": "OAuthServerRouteEndpointAccessibleController_SyncError",
    "status": "True",
    "type": "Degraded"
  },
  {
    "lastTransitionTime": "2021-04-22T00:07:36Z",
    "message": "All is well",
    "reason": "AsExpected",
    "status": "False",
    "type": "Progressing"
  },
  {
    "lastTransitionTime": "2021-04-22T05:51:12Z",
    "message": "OAuthServerRouteEndpointAccessibleControllerAvailable: Get \"https://oauth-openshift.apps.qe-ui48-0422.qe.devcluster.openshift.com/healthz\": EOF",
    "reason": "OAuthServerRouteEndpointAccessibleController_EndpointUnavailable",
    "status": "False",
    "type": "Available"
  },
  {
    "lastTransitionTime": "2021-04-21T23:43:45Z",
    "message": "All is well",
    "reason": "AsExpected",
    "status": "True",
    "type": "Upgradeable"
  }
]
# oc get co console -o json | jq .status.conditions
[
  {
    "lastTransitionTime": "2021-04-22T05:53:25Z",
    "message": "RouteHealthDegraded: failed to GET route (https://console-openshift-console.apps.qe-ui48-0422.qe.devcluster.openshift.com/health): Get \"https://console-openshift-console.apps.qe-ui48-0422.qe.devcluster.openshift.com/health\": EOF",
    "reason": "RouteHealth_FailedGet",
    "status": "True",
    "type": "Degraded"
  },
  {
    "lastTransitionTime": "2021-04-21T23:55:12Z",
    "message": "All is well",
    "reason": "AsExpected",
    "status": "False",
    "type": "Progressing"
  },
  {
    "lastTransitionTime": "2021-04-22T00:09:30Z",
    "message": "All is well",
    "reason": "AsExpected",
    "status": "True",
    "type": "Available"
  },
  {
    "lastTransitionTime": "2021-04-21T23:48:24Z",
    "message": "All is well",
    "reason": "AsExpected",
    "status": "True",
    "type": "Upgradeable"
  }
]


3.

Actual results:
2. co/console is reporting Degraded: True but Available: True, actually console is not available now

Expected results:
2. when console is not available, we should report Available: False

Additional info: