After reading the article I noted that Microsoft is really starting to position Office 365 as a full SMB. Offering "Teams" as a "free" addition to an already existing subscription is VERY cool!
Free is good. Right?
Have you done this yet? Stop lying! You have not done it so...since it's now Winter (here in the Sates) and you are locked-up for the next three months you might want to get this done. I would recommended you start the process at night and then in the morning it should be completed.
This is a good article on the "in's and out's" of the new MS Windows 10 Licensing for Home, Pro, and ENT. Small Business users will be particularly interested in this article.
This might be something, especailly you SMB's, might be interested in checking out.