Three things are equal in influence: A leader who thinks he is right, a majority of the governing board, and a majority of the voters. We got two out of three this time around: Trudeau has the big hat and Liberals hold 184 out of 338 seats in the House of Commons. The voters will have no great influence on Canada's next five years unless they rally to a flag.
The scales are tipped to favour the majority in Justin's head and the other one in the House of Commons. As Wikipedia posts on the election: Harper won last time with 39.62% of the popular vote (An outrage that 60% of Canada was opposed to) and Trudeau won this time with 39.47% (A sigh of relief for all of Canada and a repudiation of Harper). [These numbers were posted at smalldeadanimals but the post has disappeared]
The leader was picked in a 50% plus one convention. The MP's were picked in a first-past-the-post ballot.
Despite Trudeau's boast, the next federal election will be decided the
same way as the last one because the Liberals would have won 49 fewer
seats in a proportional system.
June 17th headline at the National Post: TRUDEAU ANNOUNCES PLAN TO KILL FIRST-PAST-THE-POST BY THE NEXT ELECTION. This promise just passed it's Best-Before date.
October 19th results re-cast proportionally, as published in the Vancouver Sun: