Saving is bad because it slows down the economy. We need people spending their dollars. So a little inflations is like grease keeps the economic gears moving.
Saving is not bad because "it slows the economy". Savings is bad in the views of governments and central banks because it removes their power over money. There is no meaningful practical diference between the fed printing money, and people using their savings in the event of a crisis, but only in the first case does the fed and government have control over it.
