I agree and here's why:
Copper Basin lost to Whitwell
Sunbright lost to Whitwell
Whitwell decides to fill its schedule when David Brainerd closed - Copper Basin did not
Copper Basin gets a forefeit win, Whitwell loses to CCS (a 3A school)
Whitwell gets left out because they played a game when they could have taken a forefeit. If they did not play CCS, Whitwell had the tie breaker over both teams...
Copper Basin had six wins, including the forfeit, so Whitwell's five would not have helped. But it would have gotten them over Sunbright and also Cornersville to the #23 overall seed.
Sorry about getting Copper Basin's record wrong. The bracket says you are 5-5. I guess they screwed up that part of the bracket too.