There’s probably a CNN producer off camera going “could you aim that molotov cocktail just a little further to the left? Fabulous! And, you, could you maybe scowl a bit more and yell an epithet about Trump for us? Perfect!”
That sounds about like what the media would do. Stagecraft.
CNN was at the top of the stairs with their running shoes on
https://www.youtube.com/watch?v=Yve9DhT8Nt4