whats special is speed and consistency.
when you manufacture a personal firearm, it is supposed to be yours, for your use. the 3d printer aspect, makes it possible for a group to print large quantities of receivers, under the radar, to be combined with "accesory parts" close to "drop-in" assembly style.
At issue here is that anyone can build a 3D printer. There's one in my basement a hobbyist built entirely from easily-sourced parts, and the controller is entirely open source. It never phones home and isn't really connected directly to the Internet at all.
Cool - you mean like the CNC I have sitting next to the printers? Which this legislation doesn't cover?
So no - not buying it. Hell, there's not even a real price difference. I can get a Nomad3 from Carbide 3D for the same approximate cost as an H2D from bambu labs.
And I can get super cheap temu versions of either for under 500.