'The original sin of Quibi': Insiders fear the startup has backed itself into a corner by not embracing social media

· Some of Quibi's content partners are starting to wonder whether the startup has backed itself into a corner by distancing itself too much from social media. 
· In its first few months, Quibi kept a tight grip on the clips and other assets that its partners could use to promote its content on social media, people who worked...