This is interesting. I've been doing Krav Maga for some time and a few years ago did a week of it in Isreal, sampling all its aspects and applications - military, close protection, civilian, police /crowd control and... it's spiritual side. For a martial art so young I was surprised it even has a spiritual side. It's also become the aspect I find most fascinating. And yet the instructors accompanying us seemed embarrassed by it and the single instructor world wide teaching it from a kibbutz outside Haifa.
It certainly wasn't why I chose to practice Krav Maga.