The case against conversational interfaces

Somebody showed me a text-to-CAD AI tool recently, and I can't help but feel that whoever made it doesn't understand that people who use CAD aren't trying to solve the problem of "make a model of a rubber duck" but something more like "make a custom angle bracket which mounts part number xxxyyyy". Sure, you can try to describe what you want in words, but there's a reason machine shops want drawings and not a 300 word poem like you're a 14th century monk. Much much easier to just draw a picture.

Surely those text based tools exist for people who aren't CAD experts. I don't know CAD. But a tool that let me type in a description of a thing and then send it off to be 3D printed sounds pretty great to me.