I think you could achieve the same result (if not better, since fewer people are likely to sit through a video) with an image of a snappy fake quote next to someone.

People who want to believe "fake news" will believe it, people who don't care, won't care, and people who think it sounds unlikely or don't want to believe it will either disbelieve it or hopefully attempt to fact check it.

To take a more positive view of this kind of tech, I think it has promise in producing satirical content.