Does enterprise controller need to be unconfigured before restore?

Per this link : Security Features

It indicates we have to unconfigure the Enterprise Controller before restoring EC backup as in Red below. Is that true?

To Restore an Enterprise Controller

This procedure restores the data from the archive created by the ecadm backup operation. See Example 3-1, Example 3-2, and Example 3-3 for variations.

1. Prepare the Enterprise Controller system.

   • If you are restoring the backup on the same system, but the software has become corrupt or an upgrade failed, uninstall the Enterprise Controller software.

     Run the install script with the -e and -k options. The -e option uninstalls the Enterprise Controller and co-located Proxy Controller, and the