That's what the article said, but I don't think it's true. I've heard this substitution many times and not always in restaurants. I don't think anybody is actually thinking of Canadians when they say it. I think they're just substituting a code-word they can safely use in public to communicate racist sentiments. I know what I mean, you know what I mean, and we have plausible deniability if an unsympathetic party overhears us.
