For what it's worth, I think this is brilliant and I can't understand why it seems to have received such a lukewarm reception? Before I continue, I need to state my position that I'm already in receipt of my occupational pension and so the change won't directly affect me.
Over the years I've seen many people I know exercise their right to spend every penny they earn or either make benefits their lifestyle choice, stating that the 'state' will provide in my old age.
I have seen many people who have decided to invest in property for their old age, these assets are then liquidated as seen fit and if cash runs out then there is always pension credit to fall back on.
Finally there are those who have invested a fair proportion of their life long salary into work based pensions and once retired have been compelled by law to take what is often a very poor annuity, more often than not, any payment received from the annuity classifies you as a 'rich pensioner' where you won't get a penny in benefit from the state and of course if you need any sort of dedicated care, unlike groups 1&2 above, you will be forced to sell your home to fund your needs.
For me, this change puts everyone on the same footing, if you want to blow your cash and then fall back on the state, it's your choice, however, I doubt if many will. But at least, now you have the choice.