The article is factually and technically correct, while your "Because Google probably considers" is speculation.
The "special" feed supported crawling efficiency, giving Google a real time firehouse of new tweets, instead of having to crawl Twitter as any visitor or spider would.
The "no follow" breaks the association between a tweeter and the shared content, exactly as the linked article states.
In Google's own words, "Essentially, using nofollow causes us to drop the target links from our overall graph of the web."
You are indeed "way off".
The article is factually and technically correct, while your "Because Google probably considers" is speculation.
The "special" feed supported crawling efficiency, giving Google a real time firehouse of new tweets, instead of having to crawl Twitter as any visitor or spider would.
The "no follow" breaks the association between a tweeter and the shared content, exactly as the linked article states.
In Google's own words, "Essentially, using nofollow causes us to drop the target links from our overall graph of the web."