Microsoft is a 800 lb gorilla still. When they make a large, sweeping move that affects the world of developers, it will be covered. If Oracle was to offer a free version of their SQL database that was fairly full featured but limited in memory like SQL express, it would be all over the news. But aside from Apple, Google and Amazon, very few companies can make changes that affect as many people as they do, and you certainly don't see successful tools become free or get ported to other operating systems that were always (and still are) in the competing column.
Microsoft's announcements are not normal announcements. There's a few other big companies that could do things that generate this much press but quite honestly very few of them have as much impact as what Microsoft does. The motto of this website is "News for Nerds. Stuff that Matters". It certainly fits the first bill, and for a vast majority of us who deal with the microsoft ecosystem on a daily basis (and sometimes even enjoy certain products) the moves that they have made are not only news...
...but they also matter quite a bit to us some of us..
However these same people do not usually complain about the release of yet another point patch for Ubuntu, or the release of a new flavor of tool. Those that do operate under the microsoft umbrella increasingly embrace other tools as well, and while we might not click and read all of the stories we don't begrudge the fact that they are here.