I don't see how Joker cares about Bruce Wayne being Batman. He doesn't want to do anything to Batman but make him better. If his supporting cast is being targeted, how does that show him caring about his identity?
I liked this issue a lot Joker is showing a bit of growth with his new way of thinking. He understands the necessity of organized crime to galvanize Gotham city which in turn keeps Batman around.
That backup with Penguin was nice
This whole arc seems to be just like The Dark Knight where the story is less about Batman but more about the Joker.