I dont think he is a fine teacher in the least, being an encyclopedia doesn't make someone a fine teacher. He is a grand promoter and wonderful advocate of the game. I just wouldn't let him coach or teach anyone I know.
unless a person has guidance, (in most cases) tgm is like diving into the rabbit hole. it can be a huge investment of time, money and brain matter. he looked at the hole and ran. all i am saying is he could have been a better teacher with tgm. what one doesn't understand?