Woh, first off this is news to me, the cap I was referring too is mentioned in Reuters and the beeb link included, is the redundancy cap.
A cap on pensions I can also completely understand, everyone else in the 21st century has defined contribution, with defined benefit, the tax payer takes on ALL the risk. (That said there could be reward to be had with said risk, but they shouldn't be using tax money for this at all.)