Isn't a backup of the whole os via snapshot overkill? I can bring up one or more completely configured new servers in a few minutes with Ansible (plus another f

Isn't a backup of the whole os via snapshot overkill? I can bring up one or more completely configured new servers in a few minutes with Ansible (plus another few with Rancher for Kubernetes). I don't see the point in backing up anything other than the actual data.