Why enable-mesh-pod-addressability is undocemented and what is the current update of this feature?

[husnialhamdani]

https://github.com/knative/serving/blob/main/vendor/knative.dev/networking/config/config-network.yaml#L187

I found enable-mesh-pod-addressability is so helpful when we enabled Istio mTLS, as there's no more intermittent hanging request to a Knative service,

Why is it undocumented?

Context: we need to use Istio mTLS to achieve Knative-Istio multi-tenancy networking RBAC, what is the best way/approach to have per tenant access restriction?