Well, they do have one important thing in common - they're both Diana's apparent archnemesis. "Diana spends a lot of time fighting a woman called Cheetah" was one of the few key things that people knew about her from her pre-Crisis incarnation; I can see where preserving that concept would have felt important to maintaining a sense of thematic continuity between Wondy Before and Wondy After. And this version actually does have more to do with cheetahs than that one.