Off to Europe he'll go, and that's fine because he can make money. I just can't see him in the NBA. His overall talent just isn't at that level, but who knows, maybe a few years in Europe will help.
I do understand the leaving part. He won't get drafted this year, nor would he get drafted next year. So best move is to get going on a foreign career or move on with life. Development of players is currently not at a high point at BYU so moving on makes perfect sense. Can't say I like his style, but to each his own.