The show made a fair few changes from the books, mostly for the better. Off the top of my head, Avasarala and Draper are introduced earlier in the show, Drummer got the consolidated stories of several other side characters and Elvi Okoye’s and Ashford’s personalities were significantly changed. IMO, Show Ashford is a much more interesting character than Book Ashford. In addition, the season 6 side plot with the kids is told much later in the books.
Most of the Falcon 9 launches are for Starlink and are paid for by SpaceX themselves. How is that “the government subsidizing them”? If you want to argue that they’re using money they got from NASA to fund those launches, is your plumber feeding their family from you subsidizing their life?