Yeah, that's a great start to the fight, but it's just the beginning. Talking about it is important, but actually doing something is key. I like your "she" thing, subtle but effective. Getting more women GMs is HUGE. It's not just about representation; it's about changing the whole culture.
For me, it's all about the story. If a death serves the narrative and makes sense within the context of the adventure, then it's fine. Frequency shouldn't be a hard rule. Sometimes a campaign goes a long time without a death, sometimes it's back-to-back.