Setting yourself up as an authority isn't a fallacy. It's a rhetorical device. (Though I am not sure what makes you say that anyway. The article didn't particularly strike me as the author setting themselves up as an authority, beyond what is inherent in writing an article that explains something.)

If they made the argument "I am an expert in control theory, therefore what I think about Canadian politics is correct", that would be an appeal to one's own authority. But I didn't see anything like that in the article.