No hat on and I'm not commenting on the specific case at hand. On the general point, I think it's better to err a bit toward the generous side. As an author I use as a rule of thumb whether or not I or the working group has taken someone's suggestion and put it into text. And it has to be more than editorial. A missing "," doesn't get you into acknowlegments, but highlighting confusion or clarifying language probably does.
Eliot
