I don't think eyewitness video is the biggest problem. When @LGBrandon8534932 gets their tweets posted on the evening news and it's treated the same as a statement from Dr Fauci. THAT'S a problem.
Once the floodgates have opened to allow social media statements to permeate mainstream news, there's no limiting which social media is acceptable and which isn't. Eventually, social media itself becomes the news. That feels like a natural progression to me, personally, despite how much I hate it.
Hyperbole. But not by much.