Like you say, shades of gray.
And if all things are equal ...
But things are SELDOM equal and always in flux. Seems to me, this year's Class AAAA boys Final Four was a large enrollment defending champion (Wando); two not-so-long-ago AAA teams (South Aiken and J.L. Mann); and your "outlier" ... Clover.
The Lower State semifinal losers this year were Fort D and Lexington. The Lower State championship loser in 2011 was Beaufort.
...
I will say this. My sense, with nothing to back it up, is that AAAA girls' soccer is more of a limited field. That may be unfair. And I'm open to correction there.