My take as well. I thought Jon Stewart's humor was intelligent and understated, while the audience acted like they all had a dry corn cob up their butts. i just about fell off the couch laughing when they showed that montage of "films with a cause" and he quipped,"And they were never a problem again."
George Clooney forgot to pack his sense of humor entirely. And who's the guy who got up and kissed him? You see him in a lot of photos with Clooney.
I think in general Hollywood takes themselves way too seriously. As IF any of them are real experts on political science or global warming

They're
actors, for heaven's sake!They have as much right to their opinions as anyone, but that doesn't mean they actually know more than we do.