The Article is less than a month old, so I wouldn't say it is ancient news.
That's pretty much the definition of ancient news in the security world. It's also been brought up in 4 or so different threads on this forum. Basically, if you're just finding out about a security threat a month old, it's already too late for you.
I am agreeing with you though, and now that a bigger virus is out that can actually harm me since I am a leopard user I am taking extra precautions to where I am going.
I'm pretty certain MacDefender was bigger than this, not to mention there were various worms, viruses, and trojans for OS X before this, quite a lot this year that all had some decent market penetration. Heck, there was a Conficker variant for Mac OS X. I'd say this was maybe #3 or #4 in the list of bad malware for OS X in recent times, just one that got decent publicity. It is interesting in some respects, though, like how it spawned a dozen or so variants (more than MacDefender did) and how older systems still have no defense against it through Apple.
And to do something that may seem quibbling to you: this isn't a virus, but a trojan. The distinction is important because unlike viruses, trojans don't infect other computers/files.