Big Daddy,
I believe that CESA has applied twice, including this year, and has not been admitted. As you can see from the link in the first post, US Soccer admitted 1% of this year's applicants. There is a lot more to getting an Academy spot than winning state cups. I'm sure that many of the other clubs that were unsuccesful applicants are big dogs in their states too.
Whatever the reason is that CESA hasn't gotten in, the fact is that South Carolina has one Development Academy club and that's where the top players need to be playing.