If it were to go to 67 or so, the impact would be much less than going from 60 to 65. The increase to 65 was a younger pilot group, also at a time of stagnation or furlough.
The obvious also being, no one has to stay. It’s likely to happen at some point, 1 or 15 years from now. They could split the baby, add one year, 66, there’s an idea.