Because it’s a very complex task to do especially with any level of quality and consistency.

Classical algorithmic approaches for data to CAD are quite unreliable heck commercial CAD software still struggles turning scanned 2D plans into sketches with any degree of reliability.

Something of this scale would normally require 1000’s and 1000’s of man hours in manual modeling, placement and quality control.

Some of the latest prompt to CAD agents and models I’ve seen are the most impressive use of AI I’ve seen in a long time.

At least for me this is rather exiting since it gives me the ability to turn many more ideas into reality as a hobbyist rather than spending the entire weekend in Fusion 360.