Yes. Some of the pieces were very rough.
But.
The fact that Platinum Guild funded the very likely huge printing bill as proof of concept shows where people want 3D printing to go. If you can have a metal printer spare you all the time, work, & hassle of spruing, investing, burnout, casting (and related problems to overcome), then investment and sprue removal…why not? I mean, how much of that do you enjoy doing?
My first computer printer (Anadex 1000 - the ‘1000’ likely reflecting the $1,000 price!) was a 7-pin dot matrix machine that couldn’t even print descenders like the lower part of a ‘g’ and for many years now we’ve had printers (with overpriced ink) that can print full color photos that have pretty much replaced Kodak prints (remember Kodak?)
Affordable direct-in-metal printing isn’t going to happen in my lifetime because I’m so old, but improvements and cost reductions will come, possibly sooner than it seems likely. 25 years? 20? 15? That’s a long time in the tech world.
Not done yet to my knowledge, but definitely technically doable, would be to have a 5-axis CNC machine use the same CAD file (edited for CNC) to mill away most or all those voxels etc. and maybe even do a little burnishing!
Neil A