I can see from your reaction that you do not have a lot of experience with this type of thing. Not meaning to be insulting but your comment feels really naive. Jobs sometimes take 6+ months to come to a place where you can post it and get interviews. During that time lots of things can happen. In this case they needed a system administrator and during the 6 months it takes for HR to do their thing, we were given a mandate that we had to change direction as a whole and move out of the Datacenter and into the Azure cloud.
So now we needed a system admin with Azure experience but our original job did not make that a requirement. They kept the job posting and interviews in hopes that one of the people they initially selected would be a fit but sadly none of them had exposure to Azure so we had to start over.