From the article: "They could also use this information to see whether I’m using Google Video Chat. Whether this is the purpose or not I don’t know. Regardless

From the article: "They could also use this information to see whether I’m using Google Video Chat. Whether this is the purpose or not I don’t know. Regardless, they’re collecting this information from millions of unknowing users. Bad form Facebook. Bad form." I don't think that's making big assumptions. That's just stating a fact: you don't do something invasive when it's not required or expected by the people trusting you to run software on their computer. End of story.