Nori has not been promoted because the organization probably wants him to have a little bit of sustained success. He has been very good the past 6 weeks after struggling much of the first half. This likely has nothing to do with coaching. Just trying to give the kid some room to breathe.
He'll probably spend the last 2-3 weeks of the season at Jersey Shore to give him a taste because there are lots of promotions late in the season these days. Upper level kids get released to bring the draft kids in under the organizational limit. Plus the top levels play further into September.
Nori's lack of power will probably show in Jersey Shore so maybe they'll think another winter of work could help in that regard. It is just not a big deal that he gets promoted though. It is probably more of an issue in 2026 and 2027 as after that he'll be 40-man eligible and it would be nice for him to get to AAA before that happens.