Yes to the first part, but I’m not so sure on the second part. That will heavily depend on the skill of the designer and advancement of rapid manufacturing.
Why does tooling need to be hardened steel? Why not a resin that is good for a few shots, but then can be reground and used as a new resin tool? Why not design an aluminum lamp with a paper shade that was water-jet cut and bent?
Not to say that a decentralized model won’t have issues, but just thinking about opens all sorts of possibilities. I think it would be a very exciting area to explore. I love taking what’s old and making it new again.