Why do you want this feature?
The EKS AMI should move to using systemd cgroup instead of cgroupfs. See awslabs/amazon-eks-ami#521 for details. That change was reverted in awslabs/amazon-eks-ami#587 because apparently eksctl nodebootsrap cannot handle docker daemon config changes.
What feature/behavior/change do you want?
eksctl should support work with the changes to the docker daemon config found in awslabs/amazon-eks-ami#521