Either he's speaking ahead of updates or talking about official shipped numbers. In the industry the shipped numbers define the public sales. 60 million shipped with 58.7 million sold seems acceptable.
Can't seem to find the post you mention so hard to say without reading his actual words. Seece is normaly pretty clear in his statements.
No no no this weeks numbers have not been added to the bar graph on the main page yet. What you can see there are the numbers before Black Friday week. With the rest of the regions coming in, the 360 will be above 60M for the BF week.
EDIT: Meh too late