6.7 is EOM, but you seem to be confusing rke1 and rke2/k3s. RKE1 requires a ‘node template’ where you pre-define stuff for your cluster. This can be re-used between pools in rancher, or you can create new templates for your use case.
rke2 doesn’t require a node template, but does require you fill out the node information for each pool. To see this, go back to the management -> create cluster view and toggle the ‘rke2/k3s’ icon before selecting vsphere from the page.