A very good outline. One caveat I have to this paragraph- "Violence is chaotic, unfair, and unfolds fast. The person who has trained through adversity, who has stumbled, adjusted, and kept moving, is the person far more likely to stay in the fight when it counts. This final piece of iron ensures that when life hits back, you don’t break; you respond with resilience and skill."
No. While it sounds right about staying in the fight, if you want to survive it is about getting out of the fight as soon as possible. My instructors all absolutely emphasized getting out of the situation as soon as conditions would allow. Who were they? SWAT, MA masters, spec ops, military and LEO trainers.
Let me explain. The key to staying alive is not to stay in the fight but to survive it with as little injuries, loss or negative effects as possible. It isn't about "winning", that is for sanctioned matches. It is about getting away from the attacker(s) as soon as you can without getting injured. So you end the fight fast by- escape, parrying, or better/faster/more focused combat than is being used against you. Then you quickly exit the scene. I am alive today because of that.
Note - this isn't "finishing the mission" training which is a different perspective and focus. Rather it is for self defense. In self defense as the article insinuated, you are not looking for match winning points or trophys or cool looks found on tv shows where the hero talks tough, acts fast and the opposing gang are impressed or cowed into submission. End the fight and get away to live another day. By any means necessary. Your goal is to get home intact, look after your family, not get arrested or sued or injured/killed.