It's a great point, and we were sensitive to trying to find more research that captured the perspective of elected officials as they transitioned electoral systems, and there's not a lot been done on that. So this is more speculative, I think.
You're hitting on a point around electoral reform that I think is so important: how parties are going to react and adapt things like their nomination processes, which our research shows most MPs find to be one of the trickier elements of the black box experience, not entirely understanding how it's supposed to happen, as the rules sometimes are bent and changed. We don't know how parties are going to adapt to that, no matter what system we put in place. That said, obviously MMP would have some different functionality because there would need to be two types of MPs, a local race and some other appointment process, whether it be voters get to cast a closed ballot or an open ballot.
I know that British Columbia citizens favoured STV it because they thought it was the system that in their view would create the greatest incentive for MPs to have bonds with their local constituency and would give voters the most choice, because you have candidates within the same party competing against each other on the same ballot.
These are some interesting design considerations. It's just hard to say for sure precisely how they're going to play out in Parliament in Canada.