I don't disagree, but then, I'm not sure you can make a good comparison between Google+ and Facebook. One is meant for productivity - Google+ was marketed from the start as a more business-inclined way to interact with people (conferences, setting up meetings, etc.). Facebook isn't really trying to be productive, so perhaps the author shouldn't have used the comparison at all. Facebook is really just about interacting vicariously through the internet, with no rhyme or reason to it.