I disagree. From the article: "The same year Apple launched the iPhone, it unveiled a massive upgrade to Mac OS X known as Leopard, sporting “300 New Features.” Two years later, it did something almost unheard of: it released Snow Leopard, an upgrade all about how little it added and how much it took away. Apple needs to make it snow again. Snow Leopard did what it was made to do. It was one of the most solid software releases Apple ever put out." This gives the impression that it was solid out of the gate, which it was not. And the next paragraph specifically mentions "2009’s Snow Leopard". But later Snow Leopard releases were in 2011.