The GLC captains should have gotten less.
Between their extending and years of service - they have shown both their willingness to accept whatever the company offers and no indication of being a threat to leave or of striking.
As a result, the pay for the bottom 25% virtually guarantees you'll have nothing but a revolving door for the next 10+ years.
Should have given the most senior crews NOTHING, walked back their pay (or made the entire payscale not seat dependant) and tried to push them into retirement.