I take it this way. If C:/Windows folder is crashed, can you recover it. I guess no. Do you care C:/Windows folder or do you care data in Document folder or 😧 drive etc.
Same goes with ONTAP as well. If node is crashed still your vol0/root data is saved on the shelf's disk. You are never going to loose setting like export pemissions, junction path, CIFS access or lun;s config. Only you just need to rebuild the ONTAP and node will be back in operation.