I guess most teams scouted him (there were reports about United as well), and in retrospect look "stupid". But its a game of chance after all.
He made the right choice at the end. Joined the best team in Europe and developped nicely.
I doubt he would have been made a LB/LWB in other teams. Even if he ends up playing as a winger later, his gale has evolved in Munich. Good business, good coaching.