Originally Posted by
Inversed
I would argue her situation and story arcs feeling frozen namely had to do with her going over 10 years not having an ongoing series, and only getting said series because the Netflix series did so well.
Bendis at least tried to do what would be the next logical step for her character, which is make her an Avenger so she could inspire her child. However he had her retire as he left the book, so she went the next couple years as just a Luke Cage supporting character.
Wasn't until the ANAD era when we got to see her as a Private Eye again, and when we finally get to hear her POV again, she's back to her grumpy screwed up self. So it showed that the marriage and the child didn't effect her character, just most writers didn't know what to do with her until the Netflix show reminded them what they should be doing.
I don't think it helps that the writers themselves haven't really done much with her, when there really is so much they could do. But I guess because she's a "Spider-Man supporting character" means that she can only really do things in Spider-Man books, and given her most famous trait is being the girlfriend of the main character, it seems its hard to not wanna call back to it.
Pretty much, outside of one moment where she gives Tony Peter's contact info, he is barely mentioned and their prior relationship plays no role in her working with Stark. The problem is that they basically just had her sit on the side the whole time and occasionally say something to Riri, Amanda, or Friday.