The bull case IMO is that you can just produce very standardized ai satellites, load them into Starship, blast them off and have them work. And that the cost of that versus permitting etc will be less than trying to do it on land. I kind of believe it could get there. We could build nuclear reactors next to giant facilities but...we can't really seem to do it in the US? China seems to be able to do it.
PS. I think the authors argument that millions of satellites might run into each other is silly. There are like 1.5 B cars.