The main takeaway is, as I noted, in the the opening portion ("Absent Notre Dame, there might not well be an ACC Network. Its name was a driving force in ESPN exploring the project, a development that quickly led to the conference's 2013 grant of media rights, which bound members to the league through 2027") and closing portion ("Trust me, having the Irish in the league, and locked in by a grant of media rights through 2035-36, is worth a heck of a lot more to their ACC colleagues than $460,000 apiece, let alone $290,000"). The stupid hypothetical math exercise is irrelevant as the premise of the article is that ND, at a minimum, is carrying its weight and nobody is giving them anything.