I will describe it, literally.
A man on a tiny motorcycle with a microwave on his head, closed covering his face, comes to a screeching halt in front of the camera, opening the door as he does. This reveals his face and a complicated mechanism to keep it on his head. He stands using the momentum of the motorcycle to propel him up and says, angrily "I know a lot of you hatin' motherfuckers want me to fail, but guess what? It ain't happenin! You know why? Cuz I got a motherfuckin microwave on my head!" He leans over to close the door, remounts his tiny motorcycle, and scoots away in to the city.
It's to get cameras thrust in their face so they ask when oil executives will face consequences.
"Is destroying art worse than destroying the whole planet???"
It's an idiotic form of protest, it accomplishes nothing but turning the public against you, and forever associating your cause with petty vandalism.