Board Thread:Theories and Speculation/@comment-45986362-20200726124108/@comment-25771935-20200805011032

Both of Naruto's examples were spur of the moment. The Tazuna mission was originally C-rank and even Kakashi said that had they known the full extent of the danger they would have assigned more experienced ninja to it. The Konoha Crush was an all hands on deck situation where they had to take anybody they could. And they were technically only assigned to bring Sasuke back, not to engage the Sand ninja. Gaara's mission was implied to be a jonin level mission intentionally assigned to a genin with the expectation that he would be able to complete it. So in the context of the Naruto world, yes it is impressive for a genin to be assigned a mission that was B-rank.