Sure. But what's the alternative way of finding out?
Most (perhaps all) places I've worked have had NDAs, which means statements like this are one of the few ways most of us find out what companies like MS are doing internally.
The only other ways I can think of are when hackers leak their entire commit history, or if a court case reveals it. (I don't expect a whistleblower to do so unless they're also triggering one of those other two categories).
