They have been good the last 6-7 years, but they're not a national program whatsoever. If they continue to win state titles and do this for another 5-6 years....maybe. They're not Independence of old, Northwestern, Byrnes,etc.
They are where Butler was a few years ago...on the verge of being a national program. There are hundreds of MCs all over the SouthEast. It takes sustained excellence for at least 10 years and beating other top "national" programs to be considered in that league.
If MC wants to be a national program, they can do like some other teams have done in the past and go play a non conf. schedule including the national programs from around the surrounding states. H#ll, they could just put NW, Byrnes, Dorman on their. You go 3-0 vs. those teams 2 years in a row...you're a national power.