Never, ever rely on Ken Rockwell for info. He normally pushes camera gear. In one article he'll say something is the best ever. And then he'll contradict himself by touting other gear. There are vast, epic threads mocking him on that. He does have good info at times, but he also makes his living by being paid to push gear. I was surprised when he ventured out of cameras and into audio with the piece on the m10. I think it actually may have been written by someone else, as a paid placement piece. Or he took data from someone else and wrote it up. It seemed like an effort to expand his market into audio.
So while he does have excellent info at times, it is all very suspect.