That may make more sense in comparison with the 2014 strategy, which didn't include all potential customers and specifically avoided the high end and business markets in order to focus on the value-phone buyers in "emerging markets" so as to "connect the next billion people".
[2014 - http://www.bloomberg.com/news/articles/2014-02-23/microsoft-... ]
Focusing on business and flagship phone customers is a change in strategy which puts Microsoft into direct competition with Apple and Samsung.
Good luck with that, now.