Well, that's not exactly as you remember.
Morrison said he wanted to write more about Batman and Robin, 'cause he had a lot of ideas with Dick and Damian's Dynamic Duo.
Snyder said he had other stories planned for DickBats, included the Court of Owls, but he was forced to turn it into a Bruce's story. Now, he is using some of the ideas he had back then, but as a Nightwing story. Bruce is missing, as in Reborn, but Dick is not going to be Batman. This is about a Gotham and a Batfam with Nightwing as their protector/leader, so, yeah, it's a Nightwing story.
Dick is a detective, he is always been, since he was a kid, so i don't get your point against that word.
I hope this will be one of the great stories Nightwing deserves.