Odins Raven summed it up ; it can all change.
Its only a matter of time before Jet2 wake up and someone points out (probably ex Ryanair type) that 2 sectors days and pilots doing 500 hours a year is way short of what can be achieved.
Enjoy it while you can as it wont last especially if they employ any senior FR pilots or Mment who are trying to make a statement or a good impression.
Ps only upside they might espouse the benefits of a 5/4 roster