Honest question: would you be similarly dismissive if it turned out that it’s secretly mostly the right who “shapes the flow of information” in order to influence public’s opinion and has already used that power during the past election cycles?
Remember - we’re not talking about some minor news outlet here. We are talking about social media platforms that are so pervasive basically every single person knows about them and is in one way or another exposed to the information that’s presented on them. To have the power to shape the flow of information on these kind of platforms is to have power to shape whole societies.