However, it's hard to fathom the EU parliament sometimes because it's such a broad and diverse bunch of people and interests forced into such a small political space.
If someone asked me to play devils advocate for this decision, I'd probably appeal to people's fear of foreign disinformation campaigns and the impact they're having on western democracies. I could probably cobble together a semi-compelling argument about how Twitter, Facebook, and Reddit, have inadvertently handed the enemies of the west the most powerful propaganda tool in all of human history, and those enemies are using it to great effect. Or how marketing companies have convinced millions of parents worldwide to not vaccinate their children through the internet. Or how organisations like Monsanto astroturf the web and misquote or misrepresent scientific reports or news articles to make it seem like Greenpeace promote and advocate using DDT.
I'd then go on to argue that information can and must be free to share, but nefarious misinformation should not be free from punishment nor protected by law. And so, the age of anonymous and unaccountable publishing platforms must come to an end. If they don't want to be held accountable for the content they publish, then that's fine. But that just means we restrict the type of content they're allowed to publish. After all, we have advertising standards that the press and broadcasters adhere to. We have rules around when and how "traditional" media can report on politics. So the Youtubes, Twitters, Reddits, and Facebooks of the world can either fall in line with those rules, or carry on as they are but simply refrain from anything that could be perceived as advertising or political reporting... which is pretty much everything except dick picks I think.
Now, I'm pretending to defend this law. Don't assume I believe any of what I just said. I actually think this law abhorrent. And while I do have concerns about the unrestrained power and influence of the web, I don't think this law is the answer to my concerns. But if I put my mind to selling this law to people who don't know as much about the web as I do, I think this kind of argument would be effective. On some people at least. And MEP's aren't technical people. They're political people. And I think it would be pretty easy to scare them into backing this law whilst appealing to their sense of justice, fairness, and honesty.
I'd argue that 80% of statements made by political actors are about spreading misinformation (or fake news), misinterpreted (misreading latest wikileaks reports) or deliberate lies to drive a point home (immigrants are driving the UK economy down!). For example when the US reps states "we found nuclear guns in Iraq" is it a valid statement or nefarious misinformation. Does prior experience by an actor amount for anything? Who gets to decide?