This point is important, and not just regarding BJJ.
Verbal de-escalation is commonly cited as an important self-defense skill and it is. What are the qualifications of the average martial arts instructor to teach anything on that subject beyond what a student with moderate social skills likely knows already? I'd go to a seminar taught by someone like Ellis Amdur on verbal de-escalation because he has years of professional experience with the topic. Most martial arts instructors can't say the same.
The same goes for awareness and avoidance. Once you get past a few simple principles that plenty of non-martial artists already know (don't walk down the sidewalk staring at your smart phone, don't abuse intoxicants, don't hang out with people who abuse intoxicants, even responsible intoxicant use should only be occur in the company of people you trust, don't hang out in places where fights regularly occur, etc, etc), most martial arts instructors don't have any special knowledge or insight about how to spot real world threats. (In fact, I've seen some instructors repeating urban myths about the sort of attacks that don't really happen while never mentioning circumstances which are much more likely.)
I've gotten some good guidance from people I trust on these topics and have enough life experience that I think my awareness/avoidance/de-escalation skills are sufficient for my personal needs. I could probably offer some helpful advice to some people depending on their circumstances. I don't know that I would feel qualified to offer a general purpose seminar on those subjects.
Recognizing the limitations of our expertise is critical - avoidance, de-escalation, striking, clinching, ground-fighting, weapons use, legal principles, dealing with emotional aftereffects, etc - we need to know what areas we actually have expertise in and in which of those areas we can effectively pass on our expertise.