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, Rutgers, DePaul & USF) are decidedly worse than the bottom three programs of the ACC (Boston College, VTech & Clemson)
If you are looking at national titles alone, the pecking order in the new ACC is UNC, Duke, NC State, Louisville, Cuse. Of course, some schools like NC State have largely been irrelevant for the past couple of decades while a school like Syracuse has been very successful over the same time period, so you have to factor that in as well.