What continues to fascinate me about stories like this is just how nakedly, obviously partisan the post-Trump reporting on the evils of social media is. Compare this with, for example, the tone of all the stories about how the Obama campaign used social media to win the previous election...
If I recall, the bulk of those stories occurred during Obama's first campaign. At that time social media was still in its infancy (Twitter, I believe, was only about a year old) and was a new phenomenon.
Social media has dramatically wider penetration, Facebook's algorithms are vastly different, and the malicious actors have figured out what works well. It shouldn't be a shock that the coverage has changed as a result.