The obvious problem with this argument is that in just the medium term, world-model style AI will get good at this task, but having big brother pre-approve every print will still be bad.
GCODE is mostly about pure maths and geometry (well, there's other stuff but in principle). They would forbid math? "Euclid is illegal."
Maybe gcode watermarked and slicer signed? I can't remember. Something silly, that is for sure.