Here is the example.
The failures are as follows...
Being too eager to believe whatever the "authorities" tell the media, and failing to demand evidence to substantiate the claims they make. Indeed, the media is failing to ask why we haven't been allowed to see any evidence that the massacre did, indeed, as claimed, take place. What about surveillance camera footage? In the doorways and inside the school? Anywhere? What about crime scene photographs showing irrefutable evidence that a massacre indeed took place? What about a picture of the dead gunman? It's unprecedented to show zero evidence whatsoever.
Namecalling regarding those who question the narrative due to lack of evidence and to suspicious circumstances and behaviors of various players in the whole story. Since when is it illegitimate to want more evidence and question the honesty of a notoriously dishonest, corrupt state apparatus? Since when is it illegitimate to question the "mainstream" media, which we know lies to us all the time and hides critical information and evidence from us to protect various parties?
Really, this article is rather small-minded and hardly an example of inquisitive, free, logical-thinking journalism at all.