Windows Admins & VSS

I've been running into a number of Windows Admins lately who are not familiar with the Microsoft Volume Shadow Copy Service. I guess you have to be an admin who works with backups to have any familiarity with it??? Is this common?  If you have admins who seem to lack knowledge of VSS I would recommend the following MS TechNet library reference. Lately I've been dealing with the object enumeration and missing system writer issues, if anyone has found a solution for the object enumeration issue I'm all ears!!!