Board Thread:Episode Discussions/@comment-3279282-20150122133525/@comment-8048518-20150122213300

These episodes are filler, and filler doesn't always keep consistent with canon material, so it makes sense to that they'd have Team Konohamaru genin/academy student depending on which one fits this story's setting better.

And anyways, we have no idea whether or not Naruto participated in another exam to become chuunin. There are decades of timeline not filled in between the end of the war and the new generation. Neji simply said that staying a genin would not keep Naruto from his goal. Which we all know is pretty true. xD