Great find! The only clarification I'd make is the 4000 number quoted to me was for acoustic guitars only in Americas. I think the overall guitar number was closer to 10k, and that's before they got into the solid body electric market, which they've been crushing. But it's obvious that their numbers have increased, and they're still chasing supply-demand balance.
Apparently, they had gotten their first CNC around that time, which they were using for headstock and/or logo. Since then, I think I read somewhere that they use CNC for initial carve and shaping, but still have their staff finish the carving, bracing, shaving, etc. by hand. It wouldn't make sense to hand cut every piece of wood, if they wanted to get up to this 40k number. And that may explain how the neck carves have become so much more consistent in recent years.
Also, for comparison, let's say acoustic is 1/3 of the 40k number (assuming electric outsells acoustic)... that's about 13k, which is about 10% the size of Martin's acoustic lineup. I'm not sure what Gibson or Fender produce in electric guitars, but perhaps a proportionately similar number.
Shorter version of what I typed: I wish we had some more details, so we didn't have to speculate or guess.