Worst news ever.

Docker people will spend more time fixing and making bugs due to Microsoft, the documentation will become a mess (it cant possibly be same documentation for that different systems), the Linux-side of docker will be more mediocre compared to what it could have been if all effort went to it.

Remember Internet Explorer 6, Visual Basic, the horror that is Excel and the whole Office suite, Asp.net, Windows Millenium, The attempt to kill Linux by Microsoft through SCO.