The main thing the Green New Deal gets right is giving a pithy, easy to understand label to a set of ideas. People (voters) need easy to understand concepts to get behind (like "me too", "black lives matter", or "the wall"). What GND does is provide, I think, an umbrella to fit these concepts under. The difficulty will be translating big ideas into concrete policies, much as Occupy failed to do. It's an evolution, not a revolution, but the power behind it IS revolutionary.