It is telling as to the irrelevance of the economics profession that the coauthors are lawyers.
The concerns about robots and artificial intelligence have come from scientists who express worries about killer robots with super intelligence taking over from dumber humans with less capabilities. Possibly, but it is more likely that these kind of concerns stem from an incorrect model or understanding of mind, consciousness, and creativity. I do wish that Michael Polanyi were still with us to give us his take on our proclivity to attribute intelligence to machines.
The coauthors briefly mention these threats as well as the very real and already present threats from governments armed with the intrusive surveillance and control that the digital revolution and artificial intelligence make possible.