The creative team gave their pitch for Grayson. It's been talked on podcasts, interviews, forums and websites repeatedly. I don't think it's their fault DC didn't end Nightwing properly. It seems like they (Seeley/king) we're put in a tough position to try and do both (end nightwing and preview Grayson) in one issue for whatever reason. Not their fault IMO.
Good point on the upcoming crisis. The time table for Grayson hopefully is being rushed for a good reason. I hope you are right and Dick Grayson earns a big role in this event!
It should be interesting!