No Content based on Personal Story.
It’s random, for example my Necro just got Forgal
“Teacher’s pet, teacher’s pet. How dead did your mentor get?”
I now really look forward to killing her.
All the instances are randomized, so you were unfortunately just unlucky. That being said, I found the mentor instance to be my favorite. Scarlet takes a very sadistic personal attack on the player, especially since the mentors are one of the best written characters in the game. I also liked the “Don’t look behind you” phrase as you run into the next room :P
Honestly, this is the first time I’ve felt the need to turn her into a bone minion to explode for reasons other than a dragged out story that has no progression. I hope Anet decides to finish the climax soon since they wrapped everything up in this update, and I hope Scarlet continues to make personal attacks on the player until then.