"This fleet is meant to be mass-produced and built to last a much shorter time, 5-10 years at most. I am very interested in just how low can they drive the cost of making a single satellite."

One of the best points in the discussion. This has potential to produce side-effects more valuable than whatever they were attempting to do. As in, they can fail in their overall goal but a ton of great things would come from success in this part.