Apart from 1 and 3, probably everything else can be added today if the people in charge have the will to do that, and that's assuming that I am right and these

Apart from 1 and 3, probably everything else can be added today if the people in charge have the will to do that, and that's assuming that I am right and these points are actually that important to be standardized. However the big enterprise-tier money in Kubernetes is made from dumbing down the official k8s interfaces especially those related to access control (e.g. k8s own NetworkPolicy compared to Istio's access control related resources).