1. I doubt that Louisville's academics are perceived much different that Boise's, but to your point, yes, the ACC has some really good academicsYou're forgetting one gigantic detail. Both Stanford and Cal would dump their entire athletic departments before they associated themselves with Fresno State, San Jose State, and Boise Community College*. They'd gladly pay to be associated with Duke, Georgia Tech, UVa, and UNC given the two options.
* - the Boise Community College moniker is the best thing to ever come out of Ramnation.
2. I hold a large degree of skepticism that academics matters significantly to anyone in this era of realignment