Remember that Canada designed a more centralized federalism than America’s, not long after the close of our Civil War!
(“Confederation” there doesn’t imply ‘loose association’ like it does for Americans. Theirs is actually “a more perfect union”! The provinces aren’t technically sovereigns like U.S. and Australian states are, though they acquired quasi-sovereign powers under numerous rulings of the Judicial Committee of the Imperial Privy Council in the late 1800s and early 1900s, supposedly in pursuit of British politicians’ colonial interests to weaken Ottawa vis a vis the provinces. In America, the states or the people retain any powers not delegated to the Union; in Canada, the provinces have only those powers delegated by the former British North America Act 1867 as amended, the rest remaining with the Confederation.)