Yes. If you look at MMP, MMP is better than what we have now. You get the same results on the local side; still, 50% of the voters will not be represented locally. The districts will be 50% larger, or twice as large, with a single MP doing the local representation and all the constituency work. That will be difficult for them.
Half of the voters are going to be represented on the local side. The other half of the voters have to be represented on the party side. Somehow you have to figure out how to get those voters—really, only—sorting out who's going to get elected on the party side.
On the party side, if you're not using regions within the province, you're going to have a region the size of British Columbia. Those MPs, representing half the voters, are going to be anywhere in that whole region, so that's not very local.
If you have small regions, they might be in a region of 10 MPs, so they'll be in a region of 10 MPs for that half of the voters. That half of the voters is getting a very different representation experience than that of the voters who have single member district representation.