What lesson? They found an anomaly on an experiment, before researching they found no error so they said to the science community: "We found this, can you spot

What lesson? They found an anomaly on an experiment, before researching they found no error so they said to the science community: "We found this, can you spot the error?" The media overreacted to this, they started writing shocking headlines. Don't blame the CERN, blame the media.