Yay, I'm so glad you enjoyed the glamours lesson! Magical theory is very interesting to me, I like seeing that explored in fic.
I think Harry, in particular, would be uncomfortable with the amount of power that he possesses (yes, I amped it up a bit for this story, but I feel powerful!Harry is supported by canon, too). Harry is a person who benefits from strong and loving guidance, and Severus is one of the only people capable of striking the right balance between affection and authority, I think. I love how, here, Severus is comfortable enough with himself to be the leader with Harry, in a world where Harry is expected to lead.
Thank you so much for your thoughtful comments, I'm so very glad you enjoyed the story!