Two facts that Layla4 and others forget about this incident:

1. A female government official verified the identity of the woman in question immediately before she took the oath.

2. A Harper minister deliberately ignored the law (regulation to the Citizenship Act) and tried to bypass it with a ministerial policy. And then tried to defend that slap in the face to rule of law in court, and appealed it twice with public money. The appeal was entirely political in nature and had so little legal merit that the Federal Court of Appeal dismissed it on the spot at the conclusion of argument, after federal lawyers all but conceded the point. 

Short lesson: the rule of law was not a principle cherished by the Harper government.