|Are there expectations for female characters that their character flaws need to be contained within certain parameters, in a way that males don't?|
That's probably true. I've observed that, in real life, women are often judged more harshly than men. I can offer two examples which between them prompted me to come to this conclusion: Myra Hindley and Maxine Carr. The former was jointly guilty with Ian Brady of murdering children, but was always treated much more harshly by the press. The latter only made the (serious) mistake of providing a false alibi to a man who turned out to be the Soham murderer, but was treated by many people, press and public alike, as if she was the actual murderer.
So yes, women's flaws are definitely constrained within much tighter parameters than men's.