Election auditing is routine... and the results in Arizona have already been through two of them. The Big Four accounting firms (Ernst & Young, PwC, Deloitte, KPMG) have all performed audits of elections. I can't believe that anyone would defend Cyber Ninjas being hired for this.
I frequently see the Republican argument that "People who are confident that the results are valid, should not care if those results are audited".
Why didn't this logic apply to the 2000 Presidential Election? Republicans fought like hell from having the results from the state of Florida audited, and that was a much closer election than the results currently being audited in Arizona... and the outcome of the entire 2000 Presidential Election hung in the balance on that one state - which was decided by only 568 votes. An audit in Florida in December of 2000 really could have changed the outcome of the whole election. It was possible.