I love it when a dumb titty anime still manages to bring up a great point.
I've noticed that a lot of people to this day have strong reservations about fighting against women (or even allowing women TO fight) because Girls Are Soft and Must Be Protected and - history will prove - already experience more violence in their daily lives than they should ever need to. Both of these are mostly due to outdated patriarchal and sexist mentalities that still persist to this day.
While this line of thinking is - on the surface - generally coming from a good-hearted place, it doesn't actually help anyone. If you're going so far out of your way to Protect Girls From Violence that you never want to see them fight back, you rob them of their ability to stand up for themselves. Women need to be allowed to fight on their own terms, just like anyone else. If you're really worried about the perpetuation of violence against women, your time would be better spent dismantling the systems that allow these behaviors, not stepping in to fight every battle.
If even an anime about jello-wobble boobs and pantyshots can recognize this, then surely it should be common sense!