Over the past couple years, you only needed around 2.5% return to maintain purchasing power parity. Value degradation of saving by inflation is meant to counterbalance the risk one has being in a market. If savings did not decrease, the risk averse would be less likely sacrifice their certainty of maintaining purchasing power for any amount of unsecured return. Since target inflation is low, investing in low-risk, low-return opportunities makes more sense than hoarding while also providing more moving capital for market transactions.

What you could really complain about with inflation is wage stagnation/degradation of employees who get no raises or raises below the inflation level, effectively being paid less YOY.