It's in the FAA already for subsidiaries that these types of things can be changed by order in council. As it's changed over to the Minister of Infrastructure and Communities, it has been added into the legislation to mirror the same governance.
Evidence of meeting #24 for Finance in the 42nd Parliament, 1st Session. (The original version is on Parliament’s site, as are the minutes.) The winning word was regions.
A video is available from Parliament.