However, the Greens have made little discernible effort to counter National's portrayal of quantitative easing as replicating the hyper-inflation of 1920s Germany and modern-day Zimbabwe - and thus another example of Green Party "wackiness".
As an attempted facesaver for yesterday's volte-face, the Greens are now promoting a private member's bill which would make the board of the Reserve Bank responsible for setting the official cash rate - rather than the governor alone as now.
This further attempt to include the value of the dollar as a factor in setting monetary policy would see the bank's board include representatives from the export and manufacturing sectors.
This sounds dangerously like decision (or rather indecision) by committee.
Should the bill succeed in the ballot of private member's bills and win a slot on Parliament's order paper, it will be castigated by National as further proof the centre-left is soft on inflation and not concerned about people's savings losing value.
One avenue of attack may be closing for National. Another may yet open.