Maybe you should read it again considering the best selling laptop on Amazon for almost a year runs linux.
Yes, because one data point clearly proves every thing.
But sure... I'll play your game because why not..
Looking at the 'most popular' laptops on the UK amazon site I see;
#1 Chrome OS
#2, 3, 4 Windows
#5 MacBook Pro
#6 - 20 Windows
#21 MacBook Pro
So, if the Chrome OS sells 10 units and the next 3 WinOS based sell 8 units each they are now selling 2.4:1 in favour of WinOS.
Throw in the MacPro @ 6 units so it's only slightly behind, then the next 14 @ 2 units (5.2:1 Win vs Chrome), then 1 more for the final MacPro (10:7 in Chromes favour)... and, well, do you see the folly in your argument?
And while I wouldn't draw any hard data from it the numbers at the bottom here make the point pretty well on a global scale; http://en.wikipedia.org/wiki/Usage_share_of_operating_systems#Summary
(When I say 'hard data' I mean I wouldn't point at this and say 'Windows has a 91% market share' but it is a good guide to relative selling amounts globally as the error would have to be VERY significant to bring Linux based OSes into contention in that space.)
(Most surprising thing for me was the Web server numbers with a ~33% split across the board o.O)
I'm not sure why people are so pro Microsoft, I guess closed source walled gardens are fun? Or are we still being convinced that open source can't compete with closed source in smear campaigns?
I think you are seeing 'pro MS' statements where none exist; people tend to be pro-getting-shit-done which, more often than not, closed source apps do just fine. I know how Windows works, I install things and they 'just work' so I have no need nor desire to step outside of that world because I can get-shit-done.
While it has been some years now my experience with Linux during the early part of this century was nothing but frustration and annoyance at the lack of GUI to do things. A programmer I might well be but, as it was at the time, I have no desire to dick around with text files to do things because someone somewhere decided it was The Best Way To Do It.
Maybe this has changed in the last 5+ years since I last had a Linux box spun up but right now my time is limited and so in the battle of 'closed vs open' closed wins as long as it lets me get-shit-done and provides, what is in my opinion, a good user experience. Also no one has shown me that open software CAN compete with the closed software I use; where is open Visual Studio? Where is the open graphics debugging software?
Finally you also make an assumption that because people used closed software they are against free and open source software; this isn't true. In my own case I've released code under zlib in the past and when I do so in the future I will continue to do so. The fact I happen to use Windows as my OS of choice has no impact on my over all support of open source software in general.
Granted my utter dislike and contempt for the GPL means I'm unlikely to willingly install Linux on a machine again without a damned good reason (such as I've a game I want to sell and I need to test it...) but that's a personal side issue.