The case law is voluminous on standard of review of ministerial orders or of any exercise of administrative discretion. It's very extensive at the Supreme Court as well as at other appeal courts and the Federal Court of Canada. Significant analysis goes into the determination of whether to exercise a judicial review on a standard of correctness or a standard of reasonableness. In general, a ministerial order power would be reviewed on a standard of reasonableness but for a legislative provision that says otherwise, and this would do that.
On December 13th, 2023. See this statement in context.