We do not want deflation, particularly in an economy where the average household debt has increased significantly. -3% means that the real value of all this debt that has been accrued over the past few years is increasing at higher rate - not only are you paying interest, but every dollar paid is worth more and more as deflation occurs. If you're hoping for a recession for whatever reason, I guess you could demand deflation, but for the rest of us, we just want inflation to slow down.

The goal is to keep inflation at a low enough rate that wages keep up.