MrPVRd
Your points about redundancy are well made, but a little overstated.
Our redundancy laws are still way behind those of many other European countries and just as many employees are well-briefed, employers are even more so - especially in the public sector.
Throughout the public sector armies of administrators and employment specialists will be checking every aspect of their respective redundancy processes.
Of course one can never rule out a c*ck up, or some clever spark uncovering a rule that everybody else has missed, but I suspect this will be unlikely. And even if it does happen it will likely be dealt with quietly, out of court and on a one to one.
It will take an almighty oversight for anything to lead to a class action. (never say never though)