Personally I side with the author, as I open just about everything with middle click, but I also have a lot of dumb users that rely on target _blank like it's the only thing preventing them from spiraling into a psychosis filled chasm of self doubt. The sheer number of people who have marveled at the idea of opening a page in a new tab when shown kind of makes me uncomfortable.
I really want to fix this, and have users understand their browser more than "it makes the googles".