Purely a PR move, after the recent revelations. MS for years collaborated with various governments, often providing information before being asked. And now we are supposed to believe that they are concerned about it?
Agree with you. This is the same as facebook now pretending to care about offering you a way to 'permanently delete' your data despite a 9-year history of completely the opposite.
I am surprised that Microsoft took as much flak for it as it did when pretty much every other online property including Google and Facebook has complied with these demand (as they are legally supposed to do).
Besides it is also interesting to note that providers such as Google and Facebook probably have a lot more interesting data that the government is likely interested in. It is more likely that data from the likes of Google and Facebook that can be used to track an individual or can be detrimental to them as compared to the data that Microsoft has.