In addition to slowing the production of money, the URV program essentially tied wages to the inflation rate. To me, that seems like a fundamentally important step in both restoring the people's faith in the currency and maintaining the standard of living for them. By only printing less money, they could easily fall into a period of widespread poverty while inflation rates continued to rise -- albeit at a slower rate.
Of course, I'm just an armchair economist, so perhaps there's part of the picture that I'm not seeing.