Past achievements should be considered within their timescale. If I build a water clock now, it would be cool. But Ctesibius building a water clock in 250 BC, now that's fucking impressive.

3D printing a human bust is cool. Sculpting a human bust three thousand years ago? That's incredible.

Will those videos or that dressmaker's dummy have any artistic value in the future ?

Please.

A modern day engineer designing and building 3d printers then scanning themselves in to building a physical model of themselves is I think roughly equivalent to a 2000 year old sculptor learning the by then commodity trade of stonecarving.

Both skilled artisans doing things which did require a lot of training but also not uncommon in their own age. Let’s not infantilize the past and pretend everything they did was mindblowing.