This is the wellknown debate on the slope of the Phillips curve. There are indeed reasons to believe that wage and price setting behaviour in the euro area might have changed during the crisis in ways that slow the responsiveness of inflation. For example, structural reforms that have increased firm-level wage bargaining may have made wages more flexible downwards but not necessarily upwards.
Likewise, we see today that firms are absorbing input costs through lower margins due to uncertainty over future demand, which would also tend to temper price pressures. Indeed, ECB estimates show that, if we take into account the unusually large and persistent shocks of the past years, the Phillips curve for core inflation may well be somewhat flatter recently.