Nadella the loser
It looks under Nadella MS is refusing to invest in any sector it doesn't have a big lead to start from (excluding Azure) - a loser approach.
That in turn, as you point out, will just worry many people about investing in any Microsoft technology - it's better to adopt any technology MS itself will adopt in one year of two. New icons may not be enough to convince users.
That means MS will shrink more and more - and companies who survive on a single product/service are at bigger risks. They're going to lose a lot of skills, too.
In this instance, an agreement with Mozilla could have been a better strategy. Unless Nadella eyes a job at Google in his future...