I think it's a question of how we can confront obvious problems with the current system.
One of those is a high degree of party discipline. In Canada we have a degree of party discipline that exceeds other Westminster systems, let alone other countries. One option is to agree that a lot of voters are voting on the basis of the personality of the leader, since that's where all the media attention really goes, especially during campaigns. Do we choose to feed into that and abandon, to an extent, the focus on local representation in the system and move towards something that gives parties even more power in a lot of ways, or do we focus our attention elsewhere and try to change the culture around party discipline? Changing the electoral system is not the only way to do that.