Like someone mentioned, it’s just a novel application for a standard 2-axis plotter. Looks like beefy enough stepper motors and standard controllers, all nicely assembled. I can’t truly judge the quality of the mechanical assemblies from the video, but what I can make out looks robust. I think it could work well and last a very long time assuming ongoing attention is given to lubing the tracks and keeping the belts properly adjusted.
Also, Automated’s web site indicates they are currently in stock.