ZDnet linked to the blog. Microsoft wouldn't denounce the blog site as that is authoritative. That's the blog site that specifically posts office releases and issues with office releases.
The root cause however has not been posted, which hopefully will be posted at some point in time.
Your original question was about my use of the words "industry leaders", or at least that is the way it is worded. So my reply was only for the purpose of establishing that ZDNet was the source and they are an industry leader. Continuing with that thought,
they readily credit Microsoft for the information. Like you said, and you are no doubt correct, even though they simply quoted the engineering team and not the Public Relations department or whomever Microsoft uses for "official" announcements, it is reliable
because Microsoft is not going to contradict their engineer team.
So, since the original question was about my use of the term "industry leaders" as having quoted Microsoft, if I had been writing an official paper, then by MLA and APA standards I supported my words properly by citing a reputable source such as zdnet and
not just a wiki source. Hopefully this removes any confusion that might be surrounding my use of that term. It was the proper way to express what I was writing and the point I was trying to get across.
And even though MS has not come out with a press release confirming the root cause, with the timing of so many Office crashes, I believe it is safe to say that the engineering team's blog is accurate. But even if they do change their tune and blame it on
something else in the future (they won't), my post is still accurate because I used proper, legitimate sources that quoted the sources that I claimed they quoted at the time I wrote that post.
I didn't get what was confusing about "industry leaders" in your question, but I think that maybe you were questioning whether an actual industry leader such as zdnet actually had quoted someone from Microsoft and were bold enough to put it into print. As
it ends up, there are such ones. I don't think anyone would believe an announcement now that the Office updates did not cause it. Too many people's Office installs went down on the very day they were updated. I think at this point, if MS tried to deny it,
they would lose more credibility than they would gain.