The OP is a list of vulerabilities by severity. When I look at the current US-CERT database, I don't see any Microsoft products in the top 10 results by severity[1] or by date[2].
The notion propagated by fanboys is that Microsoft software is the least secure on the planet, and if you believe that then you might well expect Microsoft to occupy many if not most of the top 10 places. The point of the headline is that it doesn't. It's based on challenging a known assumption, not establishing the opposite assumption.
Every time Microsoft releases a new product the Astroturfing goes through the roof and the dishonest message is insulting to experienced system engineers.
17 Sep 2012 VU#480095 Microsoft Internet Explorer 6/7/8/9 contain a use-after-free vulnerability
17 Sep 2012 VU#389795 Windows Phone 7 does not check certificate Common Names when sending or receive
Hmm. OK, how about #1 service being remotely attacked right now:
MS Terminal Services