Disagree.
When you swap in Louisville for Maryland, you have 4 of, arguably, the top 10 programs in all of college basketball.
When did the Big East have that?
Don't get me wrong, I don't think the ACC is better going away, but IMO lining up the top 8 programs of each conference gives you this:
ACC: Duke, UNC, Syracuse, Louisville, Pitt, Notre Dame, NC State, Virginia > BIG EAST: Syracuse, Louisville, UConn, Pitt, Georgetown, Notre Dame, Villanova, Marquette
Or, to make it easier, eliminate 'Cuse, Louisville, Pitt, & Notre Dame (as they're simply switching sides) and look at the top 4 remaining programs and compare them historically.
Duke > UConn
UNC > Georgetown
NC State = Nova
Virginia = Marquette
Then if you consider that the next few teams in the ACC would be Miami, Florida State, Georgia Tech, & Wake Forest, the depth of the ACC compares quite well to the Big East whose 9-12 would probably be: WVU, Cincy, St. Johns, and Providence.
And the 13-16 programs of the Big East (Seton Hall, Diggers, DePaul & USF) are decidedly worse than the bottom three programs of the ACC (Boston College, VTech & Clemson)