That's not true at all. Central banks have tried to stoke inflation for close to a decade now without success. The reason behind the current rise is just what the article mentions: "poor weather, increased demand and virus-mangled global supply chains". Or maybe you are confusing the actions by the federal government (stimulus checks) with those of the central banks (QE). The former most likely does have inflationary effects - the latter hasn't had an effect for well over 10 years by now.