So what is the official word? Was it stronger than anticipated headwinds that did force the landing in YYC?
Back in 2002 I went to Cancun with Air Canada, on the flight back they informed us that due to winds they would be making a landing in Denver for fuel. However they knew this before we even pushed back from Cancun, so it was no big deal.
If this was indeed a perfect storm of stronger than anticipated winds, and the flight crew timing out there is really nothing much more that could have been done (on the flying side of things). I guess the real breakdown is what happened on the ground in Calgary.
PS: Can YYC count those passengers in our numbers?