I attempted to import a CSV with an empty final column like:

ip,Hostname,Port,Specs,DC,Role,Deployment,Notes,
10.33.24.63,,3269,,,LDAP Server,,,

The confirmation view doesn't let me change the name, and I didn't notice it.

Then I checked and can confirm I see a field which is an empty string. While this is allowed in JSON objects, this should probably be given a placeholder field name by Compass to avoid compatibility problems later.