Istiod hpa current, desired replica count does not match

Config
1

I am facing this issue with istio 1.6.5 in aws EKS 1.16, istiod has this annotation

autoscaling.alpha.kubernetes.io/conditions: '[{"type":"AbleToScale","status":"True","lastTransitionTime":"2020-07-18T02:12:37Z","reason":"SucceededGetScale","message":"the
      HPA controller was able to get the target''s current scale"},{"type":"ScalingActive","status":"False","lastTransitionTime":"2020-07-18T02:12:37Z","reason":"FailedGetResourceMetric","message":"the
      HPA was unable to compute the replica count: unable to get metrics for resource
      cpu: unable to fetch metrics from resource metrics API: the server could not
      find the requested resource (get pods.metrics.k8s.io)"}]'

What am I doing wrong?

Here are the steps to reproduce:

istioctl version

client version: 1.6.5
control plane version: 1.6.5
data plane version: 1.6.5 (2 proxies)

istioctl profile dump default > istio-operator-1.6.5.yaml

Update the above yaml file with

metadata:
  namespace: istio-system
  name: istiocontrolplane

kubectl create ns istio-system

kubectl apply -f istio-operator-1.6.5.yaml

kubectl -n istio-system get hpa istiod -o yaml

apiVersion: autoscaling/v1
kind: HorizontalPodAutoscaler
metadata:
  annotations:
    autoscaling.alpha.kubernetes.io/conditions: '[{"type":"AbleToScale","status":"True","lastTransitionTime":"2020-07-18T02:12:37Z","reason":"SucceededGetScale","message":"the
      HPA controller was able to get the target''s current scale"},{"type":"ScalingActive","status":"False","lastTransitionTime":"2020-07-18T02:12:37Z","reason":"FailedGetResourceMetric","message":"the
      HPA was unable to compute the replica count: unable to get metrics for resource
      cpu: unable to fetch metrics from resource metrics API: the server could not
      find the requested resource (get pods.metrics.k8s.io)"}]'
    kubectl.kubernetes.io/last-applied-configuration: |
      {"apiVersion":"autoscaling/v2beta1","kind":"HorizontalPodAutoscaler","metadata":{"annotations":{},"labels":{"app":"istiod","install.operator.istio.io/owning-resource":"istiocontrolplane","install.operator.istio.io/owning-resource-namespace":"istio-system","istio.io/rev":"default","operator.istio.io/component":"Pilot","operator.istio.io/managed":"Reconcile","operator.istio.io/version":"1.6.5","release":"istio"},"name":"istiod","namespace":"istio-system"},"spec":{"maxReplicas":5,"metrics":[{"resource":{"name":"cpu","targetAverageUtilization":80},"type":"Resource"}],"minReplicas":1,"scaleTargetRef":{"apiVersion":"apps/v1","kind":"Deployment","name":"istiod"}}}
  creationTimestamp: "2020-07-18T02:12:22Z"
  labels:
    app: istiod
    install.operator.istio.io/owning-resource: istiocontrolplane
    install.operator.istio.io/owning-resource-namespace: istio-system
    istio.io/rev: default
    operator.istio.io/component: Pilot
    operator.istio.io/managed: Reconcile
    operator.istio.io/version: 1.6.5
    release: istio
  name: istiod
  namespace: istio-system
  resourceVersion: "9707089"
  selfLink: /apis/autoscaling/v1/namespaces/istio-system/horizontalpodautoscalers/istiod
  uid: 2520f398-fba6-4107-8939-cdfd0b376f61
spec:
  maxReplicas: 5
  minReplicas: 1
  scaleTargetRef:
    apiVersion: apps/v1
    kind: Deployment
    name: istiod
  targetCPUUtilizationPercentage: 80
status:
  currentReplicas: 1
  desiredReplicas: 0

in the above hpa currentReplicas: 1 while desiredReplicas:0