From the link: "Air Canada could not be reached for comment Monday..."
How is it that a huge corporation that is geared to serve 50 million customers per year, employs 36000 people and operates 24/7 across pretty much every time zone on the planet not have communications staff available at any time? My uninformed opinion is that each time you make a policy change or any press release, you have your comms staff standing by for the follow-up questions. Or could it be that they are selectively accessible, depending upon the topic?