I'm actually more surprised I didn't know that. I've been going to the CWS since I was a kid and to my recollection that topic has never come up in discussions. The old saying about going to a baseball game is "You better be sitting next to someone you like, because there's plenty of time to talk". Guess I've got some 'between innings' fodder for this year's CWS.
To add to that South Dakota doesn't have sanctioned high school baseball either and Montana just sanctioned it last year.
It looks like if a kid in Wyoming or S. Dakota wants to play baseball they have to play American Legion which is a summer league.