> The British administration of Canada was surely informed by the experiences of the 1770s.
The British administration of Canada was different to begin with because Britain acquired Canada from conquering New France and so had a completely separate culture. And the way France ran then-New France / now-Canada was completely different to how the British 'ran' the colonies ('ran' is used loosely, as there was minimal oversight since they were each basically commercial ventures).
For some interesting research on how the administration differences resulted in the cultural differences (even though the countries are right next to each other), see the book The origins of Canadian and American political differences:
