Okay, finally getting some time to provide my own answers. I will be addressing my own training and what I teach in separate comments, since the former is more extensive than the latter.
Regarding my own training:
Lifestyle: Not addressed. I've read accounts of martial arts for whom training gave an alternative to a lifestyle of fighting, crime, and drugs. In my case, my lifestyle is already about as safe as it gets with regard to violence. I live in a safe neighborhood. I don't drink or do drugs. I don't hang out with criminals. I don't get into fights. My idea of a fun night out is going to a bookstore or D&D game with my wife.
Not a lot of room for improvement there.
Target Hardening: Mostly indirect. I have learned some important principles from various sources and have worked to form some protective habits based on those. I believe those have been helpful over the years, but probably just as important is the confidence and alertness with which I carry myself, which is largely due to my training. When I was a (scrawny, uncoordinated, physically timid, unaware of my surroundings) kid, I got picked on semi-regularly. That pretty much went away after I started training martial arts.
Even though I have spent time on this aspect of SPFV, it's a pretty small percentage of my training time. Based on my personal experience, what I have learned does seem to be effective for me. However, I'm a 6'4" guy with a pretty safe lifestyle. What's sufficient for me might be less than what a woman needs or what a guy in a more dangerous environment needs.
Threat awareness and avoidance: Much the same as my answer for target hardening. I have had a few potentially bad situations that I've managed to avoid that I might not have without my training experience. I certainly wouldn't count myself as any kind of expert on the subject.
De-escalation: Not directly addressed in training. I will say from personal experience that it's easier to stay calm while talking someone down if you are confident that you can handle them physically if need be, so there does seem to be an indirect benefit.
I should note that while I say "not addressed in training", I have had instructors who give lip service to the importance of de-escalation. That's different from studying and practicing the most effective methods for actually de-escalating a bad situation. Ellis Amdur has some books on the subject that I've been meaning to pick up, but I haven't gotten around to getting those yet.
Physically fighting: This where the bulk of my martial arts training is focused. I train to develop a wide variety of skills and attributes which are useful in the event violence occurs as well as the appropriate tactics for applying those skills in a variety of contexts.
How confident am I in those skills, attributes, and tactics? Given that I'm not facing real world violence on a regular basis, it would be foolish of me to claim any sort of certainty on the subject.
What I can say ...
I know I can hit hard enough to knock someone out, because I've done it.
I know I can take multiple hard shots and keep fighting without losing all my technique or tactical sense, because I've done it.
I know I can choke someone unconscious who is trying to prevent me from doing so, because I've done it.
I know I can escape from bad positions with someone bigger on top of me trying their best to hold me down, because I've done it.
In general, defending against a violent assault has important differences (especially tactically) from sparring or competition. Nevertheless, I've studied plenty of live footage and written descriptions of actual assaults (as well as having lived through a few real situations), and just about all the situations I've seen are ones for which I have experience training in a live manner against resisting opponents. Doesn't mean I'm invincible, but it does mean I'm much better prepared than a version of myself who didn't have my training.
Escape and evasion: Largely integrated into my fighting training. Sometimes the "victory condition" in a live drill is to disengage and get away. I don't spend as much time on this as on the other fighting skills, but my experience has been that it doesn't require as much separate skill building. The main physical skills required are ones which are part of my physical fighting toolbox anyway. The important thing which needs to be developed separately is the mindset - to not develop tunnel vision, to recognize the importance of escaping, to recognize opportunities for escape and to create opportunities if they aren't there. I've found that as long as I work this into training on a semi-regular basis, I have no trouble instantly flipping the switch into escape mindset.
Between various live drills, scenario training, and a few real life experiences, I'm reasonably certain that the skills I've developed for this aspect of SPFV are solid.
Dealing with legal and emotional aftermath: Partially integrated into my physical training, in that I work to avoid habits which will get me into legal trouble if they come out in a fight. (No repeatedly stomping the head of a downed opponent.) I've also had some guidance from LEO friends on avoiding legal problems after the fact. It doesn't take up a lot of my training time, but I do try to stay aware of legal considerations.
As far as the emotional aftermath, I don't do any specific training directly addressing that. However I have developed a habit through my training of reacting to stress by centering myself and breathing calmly. Hopefully that (and the fact that I'm used to being punched, kicked, thrown, and choked by my friends on a regular basis), would be helpful in processing any post-assault trauma.
I'll type up another comment concerning the classes I teach a bit later this evening.