Actually after giving it some thought, this is probably a smart move.
Surely some dubs in each congregation are aware that they have passed the 8M mark...And surely in many congregations at least one will answer up on how the work is being speeded up by big-J, along the lines of this: "As you can see in the paragraph, at the time the FDS was preparing this article we were only 7.5M publishers. At the Regional Convention, we now heard that we have more than 8M brothers and sisters serving Jehovah. Here we can see how close Armageddon must be; Isn't it great to have the truth."