Because the women aren't 'busty' and 'hormonal' enough? Yeah he did write a lot of memos about important stuff like that.
But on the topic of war, I'd prefer the whole show wasn't about space war, but it doesn't mean the setting generally doesn't give opportunities for very Star Treky plotlines - to do with how you treat an enemy, how you respond to aggression, how you manage ethics in conflict, whether the ends justify the means, the similarities between enemies when they are given the chance to see them, all things Trek has focused on since the beginning. A war doesn't have to mean lots of battle episodes.