So many factors at play here. The volume of refunds is huge and likely far far bigger than ‘the system‘ is designed to cope with. It’s not just Devils and Devils games, it is potentially thousand of events and millions of refunds.
That money is (largely) not paid directly to The Devils. At the very least it goes to a ticketing company, and then to The Devils. Everyone along that chain has probably spent at least some of it already, so it’s likely not even as straightforward as reversing a long chain of transactions.
Even on a quite superficial level this is potentially a massive massive headache, that needs significant input from insurance companies, financial insitutions, and government agencies... all of whom are likely a teensy bit overwhelmed at the moment.
Eventually they’ll untangle all of this, but I can’t see it being done quickly.