Johhny,
I think most people would be classified as either;
type (c): business deligates scheduled to have a meeting in Hobart, which will have to be Christmas Day or not at all because that's the only day with seats available, OR
type (d): holiday makers who mostly don't want to travel on Christmas Day, and if they do, don't want the double whammy of having to pay jet flex for the privilege.
I'm sure plenty of people would buy flexible fares if the flight was on a day and time that they wanted to fly, just like the thousands that have been purchased for travel to Hobart this week!!!
