He moved back to be with his family. What better reason do you need? That arguably might be the best reason to move back home. He's moving back in to his mom's house for God sake.
I'm sure Cardinal Ritter is nice, call me crazy, but in terms of Football, it may be a step down from IMG.
In part, one goes to IMG to get experience playing with other's that want to concentrate on Football, (IMG) has multiple football teams with multiple schedules. They get paid for developing a talented kid and providing an excellent service. They don't steal the money, they earn it. People actually want to attend IMG, Cardinal Ritter and Trinity Catholic, for multiple positive reasons, what a terrible concept. What an opportunity for this kid.
If people are jealous of private schools success, start your own school or try to make the program at there home school better. Above all, stop whining.