Of course. The author points to a real problem whereby civilian control of the military is undermined because the underlying capabilities have eroded. But this is due to the DoD procurement moat that the Big Five persist; if it were easier to procure DoD contracts, then we'd see more smaller contractors pop up to compete for them. That those smaller contractors are still profit-maximizing civilian corporations wouldn't matter; having a large, diverse industrial base was key to 20th century military victories, as the author concedes. But said industrial base does need to be both large and diverse.