Oh, well, what did Winston Churchill say about people getting the kind of government they deserve? If almost half of those who supported fair voting system four years ago choose either to stay home or to support the status-quo - well, that's their choice. Except, they better don't complain when they are the ones facing a tough choice between voting their conscience and supporting the front-runner they hate the least. Next time when their least-favorite party wins majority with 40% of the vote (not to mention - with fewer votes than the other front-runner,) let them remember the day when they could have made a difference, but chose not to.
But let's take the last glimpse at a system that BC is not going to have. Back in 2005, STV came just 39,262 votes (2.3%) short of the 60% "super-majority" threshold. If let's say 39,500 voters had changed their mind and supported STV or, if the threshold had been 55% (let alone 50%+1 vote,) BC would have used Single Transferable Vote to elect MLAs in this election. So what the results would have been like?
Obviously under different electoral system, voting pattern would have been also different. With only 20 constituencies instead of 85, both BC Conservatives and the BC Refederation Party could have had a candidate in every constituency. Other small parties too would have had greater exposure with their 1 to 6 candidates. Considering possibly higher voter turnout as well as far less concerns about vote splitting - their share of vote would have been much higher.
But even if we take the numbers as they are and redistribute them using the proposed STV constituencies - the results would be a lot more proportional than under FPTP. Considering all the close seats, where the outcome could have been different, depending on voters' second, third and subsequent choices, the Liberals would have had 42-44 seats, the NDP - 38 to 40, the Greens 2 or 3, with 1 or 2 Independents.
Again, with vote-splitting no longer being a concern (moreover - with small parties and Independents likely to benefit from surplus transfers from the major parties,) the closely contested seats are likely to go to the Greens and Independents. Thus it could have been 42 for the Liberals, 38 for the NDP, 3 for the Green party with 2 Independents. (When was the last time an Independent actually got elected in BC? Not to mention - 2 Independents.)
In other words - it would have been a Liberal minority or a tie between the government and the opposition, with either an Independent or one of the Greens as a Speaker. A shaky unstable Legislature with a possibility of an early election in a year or so? Not really. Since the STV leaves no chances for a landslide majority following a minor electoral swing, there would be no incentives for any of the major parties to seek a "re-vote".
At the same time, the Legislature would have been a lot more representative. Every constituency would have been represented both in the government and in the opposition. Less than 3% of BC voters would have had their first choice party completely shut out of the Legislature (as opposed to 12% under FPTP). And even those 3% could have had their vote transferred to their second of third choices, instead of just being discarded.
Just yesterday, all that was still possible. BC could have had STV, if not for 2009 (just 39,262 votes!!!) then for 2013. Unfortunately, overall voters' indifference (towards electoral reform and towards voting in general) has shut the door on fair voting for good, not just in BC but from coast to coast.