For example, the author mentions that in Legends the New Republic retained the Imperial fleet (or at least what survived of it), and claims that the Canon New Republic is not shown to have done so on-screen. The reality is established in the various shows (particularly The Mandalorian and Ahsoka) with about as much subtlety as a lightsaber to the face: Star Destroyers and other Imperial hardware are strongly associated with oppression and tyranny, and while it would indeed be cheaper for the New Republic to retain them than to replace them, it'd be not only even cheaper but also much more politically expedient to dismantle them and sell the scrap.
It's also readily apparent in said shows that Imperial loyalists are still prevalent; Ahsoka in particular shows the shipbuilding/scrapping supply chain to be no exception. Disbanding the Empire's old vendors in favor of shifting production to the Rebellion's vendors is another easy political win and a matter of national security.
By the time of the events of The Force Awakens, a lot of this attitude of "reject the political baggage of anything to do with the Empire" has escaped the Republic's military-industrial complex and now inhabits every facet of New Republic politics. Even the capital moved from Coruscant to Hosnian Prime - and while it ain't explicitly stated why people voted that way, it doesn't take much of a leap in logic to recognize Coruscant's association with the Empire (and its abundant population of Imperial elites) as being a driving factor.
And all this is stuff the article even directly supports and vice versa - but instead the author chose to dunk on all this, doing the otherwise-excellent analysis a considerable disservice.