You don't think there's any difference between "take a bow, here are characters from the previous twenty issues" and a teaser poster designed to foreshadow the characters who are going to be featured in a title?
Heh. Were you complaining when Damian got his solo title too? "Guess who else had a solo title when they were Robin? Tim."Again, Damian being the token Robin of the TT just makes him the token Robin of the TT. Guess who also had a close relationship with the Superboy of his generation? Tim.
In terms of prominence, Damian is doing better than Tim. He's doing better than Jason. He's doing better than he himself has done for chunks of his history. For a character so fundamentally unworkable in the long-term that he was only allowed to be created on the promise that he'd be killed, I'd say he's doing OK.