I agree with all that you wrote there Trades, especially the "Extreme sentiment is the best indicator there has ever been." part. Complacency rules supreme right now in currency land, but ultimately we know what happens to the complacent in this arena...they get 'Charlie Browned', lol.
The truth is that a ton of vested interests, including the BoC and Federal government (who each have some means of influence), want to see a 'cooler' loonie. Canada's economy seems to thrive when the currency hovers around a certain sweet spot...not too hot, not too cold, just right! That 'just right' sweet spot is somewhere a wee bit south of parity. Those thinking it won't ever go back there again are deluding themselves.