The only problem is if YYZ wx's out.
Which to be fair to Air Canada...is not something they can do a LOT about (unless they try to run a normal operation in bad weather!).
As a "foreigner" I find all the talk about Air Canada interesting/educational/amusing etc. As a Brit...all I need to do is replace "Air Canada" with "British airways"..and you hear exactly the same stories in the UK (minus the french speaking problems of course). Legacy carriers will ALWAYS cop the most abuse (well they did till Ryanair came along!)