K8s at least offers more fine-grained control over networking, between port range restrictions and having to enable a NodePort.
From https://zwischenzugs.com/2015/06/24/the-most-pointless-docke... anyone with Docker access gets root with that command.
TBH out of the box Kubernetes is as bad, or worse than docker, in that anyone with create pod permissions can get root on every worker node in the cluster (and the control plane nodes if it's unmanaged Kubernetes) https://raesene.github.io/blog/2019/04/01/The-most-pointless...
We evolved sysadmin oposing thumbs called virtual machines just to deal with our environment making it cheaper to emulate an entire other computer instead of dealing with having a user without write access, guaranteed, on the FS.
It would still catch people who bind to 0.0.0.0 and expect the traffic to be blocked by UFW, but that's a different issue. `iptables: false` is a very crude solution, they should offer something like `iptables: "manual"` where Docker only touches its own iptables chains and lets you wire them up to your own UFW/iptables chains in a sane way.