Yes keep people in the dark as to the growing threat of malware on OS X.
We've been hearing about "the growing threat of malware on OS X" for 6 or 7 years now. And we *still* barely have anything to show for it.
Apple may sell plenty of Macs per quarter, but it's nowhere near the amount churned out by Microsoft OEMs. Moreover, Apple prices themselves out of the broadest retail segment. Save for the Mini, the entrance fee into the Apple ecosystem via computers will set you back at least $1000. Of course, an iPad could be had for a lot less, it's selling a lot faster, and malware on it is a non-issue.
Macs as you see them today will never reach past 25% market share - if even that. Which is just fine by a lot of folks, because on the Consumer Satisfaction side, no competitor can even touch Macs. And Apple is the most profitable "PC" maker in the entire industry, and Macs *still* outpace the rest of the industry in growth.
So "the growing malware threat on OS X" might be "growing" . . . but at a snail's pace. And by the time there *will* be cause for worry, the Mac might look very, very different, and if the iOS model is anything to go by, malware will become a non-issue.
So the Great Malware Threat on OS X has always been a) overblown by envious FUDsters and Windows sufferers, and b) contained by Mac marketshare (for those still wedded to the "security via obscurity" theory.)