Cool ! There are plenty of interesting things on this Channel (I liked Strip Search).
It's a short summary of the theory, but I really like the idea of using it in comics/video games/novels/etc.
When creating comics character (yes I do that), I prefer however not to create one on the basis of a type, but rather to type them once they are created (and not MBTI typing actually, I just give them two main functions). Typing gives them consistency (as stated in the video), and it can help identifying the misunderstandings between them and other characters, or why some work so well together. Again, I analyse after they have reacted (I check consistency), not to choose how they are going to react... I have to let them act freely ! If they are always consistent to the typing system, it gets boring. I suppose however that some people use it the other way.. ? (btw I sometimes give them some zodiac signs too, or colors or totem animals, or anything else, and do the same checking with those systems).
When I read my childhood comics, I can see each one of my four main characters embodies one of my four functions. There are other symbols too, including mandalas, metaphor for individuation and uncouscious, though I didn't know much about that stuff back then. OK actually correlations can be found in a lot of other stories too, so it may not be that special. But the order of importance of my characters totally matches my function order ! (If my type is correct)
ayoungspirit I didn't find your comment with links to the videos :/ I wanted to +1 it.