Probably not directly at the moment, but they could do something similar to what the people who are ripping them off are doing: create a FB page for exposure, and hope that exposure turns into views on their YouTube channel.
The classic pirate answer is that after you torrent an album to try it out, you go buy a copy to support the artist. So after you watch the Facebook video, you'd go watch it again on YouTube to support the creator.
That works quite well for music because you usually want to listen to it more than once - I actually started buying music again because of Grooveshark. It doesn't make sense for videos and I suspect you know that.
You probably won't. But you may check out other videos, or just remember the name and look later. It's not a great solution, but if I had content on YouTube and depending on the advertising from it, I would probably do this.
