Cindy had already been informed that there was a fake Batgirl in the Justice League. As for whether to eliminate Jane Doe, that would depend on her own judgment.
The two of them now understood how The Batman Who Laughs had infiltrated the Hall of Justice. By their estimation, he had still managed to outplay Joker by one move. But that was only natural—after all, The Batman Who Laughs was also Batman.
Jane Doe had already accomplished every objective she was meant to achieve. Killing her now would accomplish nothing.
Since Joker only wanted to play with Batwoman, Cindy decided to keep Jane Doe alive. She would not let the Justice League know either; she would merely negotiate terms with her in secret.
A hireable Doppler like that might prove useful someday.
If they were not mistaken, once the Justice League returned to Earth, that woman would seize the chance to slip away. Having witnessed the Source Wall explode, she probably would not be in the mood to make money anymore.
That was Su Ming's attitude, anyway. As long as they did not provoke him, he could not be bothered with what happened to the Justice League.
From a certain perspective, Joker might even be helping Su Ming. If he broke Batwoman, then would the command of the Justice League not be...?
Green Arrow had previously foreseen Batwoman crying her eyes out, though he did not know the exact circumstances. But if that scene came to pass, it would mean Batwoman had suffered a mental breakdown. Even if others asked her to continue leading the Justice League, she probably would not want to.
Even if they sent Harley and everyone else, they would not be able to keep up with Batwoman's "Idein." The most likely outcome for those people was