That's an EKS problem, not a k8s problem. K8s will happily let you run a pod with host network, and even the original "kubenet" network implementation allowed

That's an EKS problem, not a k8s problem. K8s will happily let you run a pod with host network, and even the original "kubenet" network implementation allowed directly calling pods if your network wasn't more damaged than a brain after multiple strokes combined with headshot tank cannon (aka most enterprise networks in my experience)