I'm not sure if that was a weather or technical diversion. So far they've had 1 known weather cancellation, and on that date even some Alaska flights didn't make it in.
SkyWest flies into some challenging approaches - Aspen and Sun Valley come to mind.. so hopefully they fix this.
The JNU5 departure out of JNU in marginal weather will definitely cause some issues this winter, since they need to see Mt. Anderson and the ridge line to depart on runway 8.