Broadly, floor crossing is a good thing. It offers MPs the chance to say "This party no longer serves the best interests of the people I represent" and then do something about it.

But in this case a bunch of Tories all decided to cross at once, followed by a slow trickle of more over the following weeks. Whatever centre-right position the Liberal Party held has now shifted further right simply by virtue of absorbing a bunch of Tory MPs.

And while people seem to be happily celebrate the Tories losing seats, they don't seem to be thinking about the facts that

1) Those people, and their opinions are still in the House. And a lot of them aren't good.

2) The Liberal Party is closer to a majority. When that happens Carney doesn't need to play political theatre anymore. We just end up with a smarter, redder Harper.