It's contraversial because it has the potential to result in another round of great Linux Desktop instability.
Hehheh. Cue in the Linux fanboy brigade who will rigorously want to deny this "instability" that you are talking about. *munches popcorn*
Seriously though, I like the things Nadella has been doing. Reverting the Windows 8 start screen, releasing Windows 10 for free
Let's not forget that a lot of those decisions have actually been made by the Operating Systems Group, which is lead by Joe Belfiore and Terry Myerson.
What do you mean Linux is "too unreliable"? It won't crash, it won't lose your data, it will keep 100+ day uptimes without a hitch...
Sure the kernel won't crash but the desktops are filled with little glitches.
As for LibreOffice vs. MS Office, both will keep 100% of their formatting once you export to PDF, and keep 100% of their data if you use any open format like ODT, DOCX, or plain text.
Not true...the layout of a DOCX can be corrupted on save or load. Not very nice if your business partner opens your document later and discovers that it's messed up. It makes you look unprofessional and might even lead to a lost sale.
Linux is not a realistic alternative on the desktop. It's too unreliable.
Additionally, LibreOffice is not suitable for real world use as it will ruin the layout of your MS Office documents (which still dominate the business world).
Given the wording, that sounds like they're going to have to contact either every contributor for copyright re-attribution, or rewrite their code for them.
That's basically what they are doing.
I'm amazed that anybody would think MS Windows is a popular platform. There is a difference between forced to use and most popular.
And what is that difference? Windows is popular due to Microsoft's monopoly on it.
The brain is a wonderful organ; it starts working the moment you get up in the morning, and does not stop until you get to work.