They're not supposed to be a friend, they're a business. If the dollars make sense they'd support pushing Louisiana-Monroe to the SEC, but they're not going to act contrary to its financial interest. In 2011 they felt that if the ACC expanded to build inventory made sense in a TV negotiation where the ACC was seeking to increase its own revenues. Syracuse was their first option (thinking it delivered the NY market); ESPN suggested UConn as a partner, the ACC asked if there were alternatives and ESPN responded... the business to them was to get the deal done with as much value as possible, not to prop up the state university where they were headquartered, and if the potential partner was balking and you could get (nearly) the same value from a substitution, you make the substitution.
Would it be nice if UConn got some ancillary benefits from ESPN's facilities being located in Bristol... for us as fans, it sure would. ESPN got tax breaks, but that was about the state getting them to increase employment levels and as a result the number of state income tax-payers to pay back those benefits, not something with a quid pro quo attached.
Blumenthal was the person who filed the lawsuit in Connecticut court (with Pitt, WVU, Rutgers & UConn as plaintiffs), then ran in front of every TV camera and microphone he could find. The then sued them again, once BC was added separately from Miami/Virginia Tech (and of course named the school and conference officials individually in the lawsuit). As a result, UConn became the poster-child for the lawsuit.