No they can’t. No DE DIAA team can play any DE non DIAA team. It’s in the rules also why RLCA could not go independent because it would have effectively ruined all the other sports other than football and basketball being able to schedule in state opponents and being able to afford out of state schedules. Look at Cross Christian schedule not one DE team other than Calvary Chistian who is also not DIAA member. They play NJ, PA MD indy teams or home school teams. No teams that are state associations teams and weak ass teams like George school perkiomen etc. a St. Andrews like football schedule. So no they are a not a diploma factory like school. At least not yet