Entirely accurate. “Social” (be that social media or social network) is a matter of the community; the people. Fragmentation prevents it from working. Evident in (like it or not) Facebook, a perception and expectation is there that ‘everyone is there’ and thus is delivers value to the user.

Today as someone explores social in other forms of media (music, as well as video, gaming, podcasting, etc.); when friends are not found on the platform, OR the means of distributing and communicating with those people on other platforms is lacking, the social experience fails. Social isn’t a matter of merely sharing and communicating, it’s that everyone you expect to be there in fact is.