Facebook users (even professionals) act like consumers, they engage with content different in their personal social channels than when they are watching content professionally.
They tend to have a very short attention span and need captivating, engaging, well-produced content view for longer than a few moments. They make snap decisions; if to spend their free time watching content or getting on with their day.
This means any content on Facebook needs to be high quality and usually that doesn’t come from a mobile phone – the video will be shaky, the sound poor and it’ll usually only contain one presenter talking at the audience. Consumers are happy to see mobile phone video on the news or snap chats between friends but when they’re dealing with global brands they expect to see slick high production, TV style video.