It's probably because in most movies/tv shows/books well developed female characters are rare and interesting relationships between two female characters are rarer still. I know there are people that just don't like femslash either way, but for me it just completely depends on what they are like together in Canon. More interesting male/male relationships in Canon is the only reason I have mainly slash ships. Its harder ( but not impossible!) to make people care about shipping people who have never met or who have had minimal interactions with.
Jessica Jones and Agent Carter are different because they star female characters and it's easier to care about the main characters relationships, especially with other women she seems to have tension with.
Re: Lack of Femslash?
Jessica Jones and Agent Carter are different because they star female characters and it's easier to care about the main characters relationships, especially with other women she seems to have tension with.