This is just another way to teach players around the game. I desire to see a true training guild, but so far HELM is closest. This is so you don't have the burdens of protecting the player as the player may not be in your guild. Also is easy as a solution for some players who don't know certain aspects and we are here to open the book for them to teach.
And thank you for pulling that up. This was to prevent a guild from controlling it but volunteer instructors instead. That way players can go to any guild and still receive the training.