I would be extremely peeved if they were not frozen for a period as long as myself and other new joiners. I.e. none of them should be getting on a triple or 747 before any of the new joiners.
Heard that said a lot recently and I have a lot of sympathy with your POV. That's the reason why I was bemused by Dingbaticus's peculiar comment a day or two back that:
My humble advice would be for the junior Flight Crew to persuade the senior Pilots to vote to accept the deal, to give themselves a future.