Thank you very much for the question.
Different types of elections? No. Both use a ranked preference system, whether you're rural or urban. I don't see any difference. You don't end up with two different types of MPs. You don't have a different voting system. The quota by which you determine whether the winning candidate is elected or not is exactly the same. It's a Droop quota under both systems.
I don't understand why people would feel that rural Canadians vote differently than urban Canadians. Urban Canadians have more choice, but the legitimacy of the MP in both cases is identical.
The second question was, why not leave the rural areas first past the post. Well, then indeed you would have two different voting systems.