Cameron went crazy when he showed up at a game this year, and there are Duke fans on their message boards who think Jabari had the best freshman season out of anyone who's ever played for the team - and that's after this NC season.
He's far from forgotten, and still often talked about among students/fans.
I completely agree that he could have been far more popular, and could have become a "Mormon Hero," had he come to BYU. But I just don't think that's what he wanted, at all.