I believe that the CGA commented more on the use of the term “public accountant” than on the term “auditor”. From experience, I can tell you that when you do not necessarily use the same terms found in provincial legislation, it requires that you go to court to obtain an interpretation of what is meant by the term “auditor” as opposed to “professional accountant” or “ public accountant”. That has been our experience. I have personally had that experience with respect to the law and Elections Canada.
Therefore, by using terms applied by the provinces—the constitution gives jurisdiction for professional legislation to the provinces—, the risk of interpretation, or at least of litigation, is lower.