I think you’re missing their point, they weren’t saying that Blender is cad, it’s just a good comparison, as a successful piece of software in the the same broad, general category (3D modeling)
We want what Blender is to mesh modeling, rendering, etc, but for parametric cad, manufacturing, etc. Basically Fusion 360 but open source, without any of Autodesk’s bs. Ideally it would even work together with Blender for rendering.