No.
If inflation is 1% and average pay is 1%, pensioners get 2.5%
Which is more than the rest.
If inflation is 5% and average pay is 4%, pensioners get 5%
Which is more than the rest.
If inflation is 2% and average pay is 5% pensioners get 5%
Which is the same as the rest
In inflation is 0% and average pay is 0%, pensioners get 2.5%
Which is more than the rest.