You can thank guys like DanL for the overreaction. He, in particular, way overhyped this kid and the contribution he would make this year. As he mentions in this thread he thought he would be starting at some point this season. That was insanity. Fran has a senior starters, so unless he is one of the better freshman in the country he isn't starting over MG or AC.
As you say, he'll likely be fine in years to come but some people just go way overboard in their hyping of incoming freshman and the contribution they will make. Playing high school ball, even at a good school, is not close to the same thing as playing college ball. It takes time to adjust and develop ones game, unless you are an elite player.