Pug,
I understand exactly what you mean but people like ourselves who avoid IT holidays like the plague may well have booked hotels, tavernas or perhaps even chartered a boat and booked return flights with Jet2.
If they have their flights cancelled, while they will get refunded for that booking they would probably lose the money they have paid for accommodation and you can bet insurance companies will refuse to pay out if the property was still available.
Can't fault Jet2 Holidays, or the other tour operators for the prompt action they have taken to get their package customers home, but that is a different issue.