Doubtful that they'll pay much, if any, compensation for this. And then that compensation will only be to people who have the time and energy to follow through to obtain it. All of that ignores the compensation limits which are often less than the customer paid for the ticket. In short, they already have all of the money from the customers and will get to keep more of that money by not performing the service. Even if they pay some of it back through refund/compensation, they have been able to use the money, interest-free, from the time of booking until the compensation is paid.