If Minato should explain the incident and the mastermind to Sasuke, what did you think Sasuke will do? Can't that change Sasuke? Since he thought Konoha cheated his clan, he decided to destroy Konoha. But if he know that Obito was the mastermind, wount he decide to destroy Obito? But if he should change, their may not be an epic fight betweem him and his rival Naruto... I want your view on this