There are several jurisdictions around the world that have fairly clear black and white language. None of them are perfect. The U.S. law applies to domestic flights, not international flights. It doesn't cover everyone. There's no reason we can't simply right this in Canada. I think Mr. Lawford had a couple of interesting suggestions that the government should be considering for us going forward. We need to come up with a way to make sure that this doesn't happen again.
Unfortunately, and you referenced SARS and past pandemics, we've also seen predictions that COVID won't be the last pandemic. This could happen to us again. We all hope it doesn't, but it could. We have to make sure that we have proper refund provisions in place and that we close this loophole.
When people were looking at the legislation and the regulations in the APPR, they said we might have a hurricane somewhere and an airport might have to shut down for two days, so it wouldn't be fair to penalize the carrier in that case, because they would be doing their best to get people home. That's what the APPR says: make your best efforts to get people home again.
Unfortunately, nobody had thought about a pandemic shutting down airspace and then people not wanting to travel for months and months, even if the airspace were theoretically open. That's the world that we sadly live in now, and we need to take care of that for the future.