Actually it’s the opposite of being shafted, they have chosen the most favourable remedy and at some point you will be given a choice of one scheme or the other with exact figures based on your service, earnings how much tax you paid etc. So you will be able to compare the two, no conspiracy.
My understanding was they wanted all current public sector workers in the new schemes from 1 April 2022 which they have achieved. Then, as you say, they are focusing on ill health retirements and widows etc. Next is those due to retire after 1 October 2023, then everyone who has already retired.
Remember there is no average worker, your pension start date, your earnings each tax year, your service (PT/FT), absences, contribution rates, tax etc. are all being taken into account for the remedy calculations it’s not the normal pension calculation. When you are having to look back over so many years it’s complex.
The calculation you currently have is a good baseline, you are not going to be worse off than that.
I am slightly a contradiction as I have a pay and reward background so understand what it is going to take to correct everyone’s pensions. I am also retired and yes it is frustration waiting for the remedy but I know how complex some cases are going to be. I also know I am receiving a pension that is roughly right.