You're talking about abuse. No one knows how long the pandemic will last. In this regard, I think any crystal ball has the same probability of giving the right answer.
I know it's not easy for the airlines. They also don't have a guarantee from governments as to the assistance that will be available to them. I understand that. However, we couldn't say that the airlines haven't received any assistance because they've already benefited from wage subsidies. Is this assistance sufficient or not? That will be determined by market forces.
All in all, other companies have experienced financial difficulties and still had to reimburse their customers, so I don't see why it would be any different for airlines.