In your document, in reference to the Supreme Court ruling in the case you mentioned, it also says here that “the first element of the Clerk's decision requires that her certificate bring the information within the ambit of the Act. [That refers to what you just stated]. This means that the Clerk or Minister must provide a description of the information sufficient to establish on its face that the information is a Cabinet confidence and that it falls within the categories of section 39(2) or an analogous category; [...]”
Is that with respect to the person making the request under the Access to Information Act or the Commission? Personally, what I understood in this particular case is that the government has refused to provide its rationale. Therefore, that is contrary to the spirit of the Supreme Court ruling.