I am not a Blender user, but my strong suspicion is that the output of these things does not match what you'd be able to do in very short order by learning a bit of Blender.

One of my suspicions about these "can we make an LLM do something that isn't text?" projects is that underpinning it is something that isn't to do with AI at all.

Instead it's that a lot of specialist programmers really really loathe GUI paradigms for anything, consider text interfaces inherently superior, think the job of a GUI is only to simplify tasks and hide complexity, and so think all complex GUIs that are not immediately intuitive are categorical failures.

In rejecting learning GUI tools they rule out the possibility that GUI interfaces support paradigms text cannot, and they rule out the possibility that anyone who has deep skills in a particular GUI knows anything more than what all the switches and buttons do, when a Blender user is very evidently engaging in a similar kind of abstract thought as programming involved.

It is much the same with FreeCAD. Does the FreeCAD GUI still suck in several places? Yes. It was confusing and annoying until I learned that it is not trying to hide complexity. The inherent complexity is in the problem domain. But a programmer with a bit of maths and logic knowledge can, IMO, easily learn it. And then you discover that the FreeCAD UI is what it is because it is a set of tools designed by CAD-focussed programmers that attempts little to no magic, and suddenly you are using the tools to solve your own problems.

In short a lot of these projects have a whiff of "but I don't wannnnna learn a GUI". The LLM or AI generator offers a way to defer properly learning the tools or techniques that are not so difficult to learn, and so attracts a lot of attention.