OK there's two days a week when it's more or less zero. But let's take a Friday in November as a representative non midweek winter day--- noting this is before the skiing season starts. What's the aircraft requirement to deliver that? I started working it out before getting fed up with red and yellow screens.
But I do agree with those who say this is a significant change in the business model and cost base. They will want to have enough of a baseload to be running those 27 around the year, allowing for a maintenance programme.