I agree. I grew up taking the N express in Manhattan. If you want to catch an N via Broadway express , then i suggest catching one of the Rush hour trains. They usually have 3-4 N trains that run to 42 or 57 via Broadway express . Luckily the current version of the N i'm working on is Sea beach lcl / 4 ave Exp / B'way Exp / Astoria lcl.
There is a plan to make it go fully local in brooklyn and manhattan and fully express in brooklyn and in queens, so expect that for the final release of the N.