Indeed - but I think there's a strong argument that many other steps which can potentially influence the sound are automated at Martin (soundboard thicknessing, cutting the brace stock, etc). And - there are other high-end brands that pre cut bracework, yet aren't automating other things that Martin automates. The black art of tuning a soundboard as you carve the braces isn't really that black when you look at what it boils down to.
At the end of the day, when I see photo essays like this, I wonder how the decisions about the process were made. I'm afraid to admit how many hours of my life I've spent on Youtube watching wood get turned into stringed instruments!