The Icon pane not only looks the same as iOS, but regarding the layout also Launchpad in OS X. I wonder how much design change we will see in Mavericks. So far there don't seem to be that many design changes in Mavericks.
I think, what he means is: there are virtually no more stories about the Mac. So ignoring iDevice/OS stories would mean, ignoring AI almost entirely – and I agree. It would be nice to have more (in depth) stories about the Mac and Mavericks.