If only Canada had a party that would promise to make this election to be the last first past the post, we'd all know who to pick. I'm sure they'd never go back on their word for that, right?
No matter what a party says before they are elected, as soon as they are in power then suddenly they are the ones with the most to lose from Proportional Representation, and nothing to gain. So they won't do it.
Really illustrates that political parties (at least the two major ones) are only motivated by getting in power and staying in power - never mind what is actually good for the people they supposedly serve.