Hmmm not sure I see the advantages of 3d printing vs lithography.
I mean, yes, technically, this approach could advance to catch up with lithography. In practice? Yes we are working toward smaller feature size in additive, but we are nowhere close to micro let alone nano scale.
If the advantage is "hobbyists can do it" then I would say "hobbyists can eaglecad too"
This seems like a detour or speedbump on our existing path toward atom level logic production.