I think you're missing a subtlety of the situation. You're right that gothic cathedrals were enormous undertakings, and that the enormity was itself a worshipful and meditative act that drew in the entire community, current and future.

Even with the CNC machines, this is still a multi-decade endeavor that will span generations because the number of monks (and outside support) is small and not getting larger. They've scaled down the work required to match their capabilities, and still creating something that will last centuries. Relative to their community, it's still a cathedral effort.