Yes, I can imagine it too. And, if such a 'safety nanny' is enacted into law, I'm confident it will A. Refuse to print a significant number of innocent projects, or B. Be trivially circumvented by bad actors. The odds are high that it will manage to do both.
Totally circumvented by everyone, basically. You can hook up an arduino to most consumer 3d printers and throw away the motherboard that comes with them. Aside from being stupid and dangerous, this is going to create some excellent makerscale marketing opportunities.