Just saw episode 43 subbed. I think it answers a number of questions to what some of the other forumers are talking about. Overall, I think it was a really cool episode.
to lazycoconut: I don't see any logical link between being an effective warrior/soldier and being an effective house husband/wife. One can be both, but it is true that it is a very difficult thing to juggle together. Which is precisely why she stopped doing any of the household stuff throughout the series. The scenes where we see her cooking are there to depict 2 main things, that firstly the Shinkengers are in a time of temporary peace, that time has passed between the previous episode and the current episode, that the gedoushuu are not constantly attack.
(If they were, then there would be barely any time for the reconstruction of buildings, and realistically, many people would migrate to other countries. So by doing a small scene of Mako cooking, of Genta selling sushi, Chiaki playing in the Arcade, even Ryunosuke's daily training, show us that the Japan is still surviving, that this is NOT a post-apocalyptic world where the gedoushuu can randomly come out and massacre everyone. They can, but they don't)
The second reason, I believe for such scenes is to show that the Shinkengers are in fact normal human beings, what makes them unique is that they have a legacy to uphold. And that they CHOOSE to be a samurai even though Takeru gives them the option not to. But that doesn't mean they cannot pursue their own interest.
On another note, I think there is a misinterpretation of what intelligence and education means. While I agree with the statement you made about how women in the past may not have the chance to be educated, but that does not mean they cannot be intelligent. Intelligence is simplistically, just brain power, however, there many parts of the brain, and hence there are people who may be equally intelligent, but completely talented in different areas. A true genius is one who can cover both breadth and depth. I see it as a big ambition to be a warrior, and a housewife.