Rucka’s run established her as behind or tied to multiple other characters, so I think that bit is going to stick.
I dislike one villain being behind everything (at least outside of “run the gauntlet” storylines) too. But Cale is cast in the Lex mold, and they’ve tied Lex to Metallo, Bizarro, and Parasite, so I guess it’s expected. Frustrating that the one connection I’d like to see explored more, Cale and Cyber, has just been ignored, Cyber hasn’t even show up since Rucka left.