I feel the name is a misnomer. These articles are opinion and analysis. News is different. Slow news would not be very interesting, either.
Actually, I've been interested in reviving something that might be called slow news. Its more like the weekly news digest. Lots of times first reports are inaccurate, or woefully incomplete, and the corrections never get noticed; also, sometimes we need to slow down to cogitate on the news instead of just reacting to it.
Not sure where I read this idea first, may have been Taleb, but it's something I've seen pop up as wanted in this hyperactive news environment.