Ah, but having her survive the notoriously ineffective "fall into a bottomless chasm" death also left room open for potentially doing a variation on "The Killing Joke" where HARLEY shoots Babs as a way to get revenge for Joker's death, and thus leaving an opening for a BoP DCAU series. Of course, given what happened when Gail tried to bring the BoP into the DCAU, thanks to the Bat-Embargo, we'll never know if that would have been an option, but...