It seems like Facebook does a thing that doesn't scale, in the interest of time: feed a minimally processed video until other streams are available. That makes sense, but I wonder if it also means that video quality on Facebook generally suffers when high-profile events are taking place.
Context on that wonder: I've always noticed that news outlets seem to carry downright horrible quality user-generated video clips of rallies, protests, and the like. Where everybody's carrying around stellar-quality video gear in their pockets these days, I've never figured out why that is.