What exactly is the relationship between the magic classes?

[Artamie]

Sacrifice was a Thaumaturge spell up to 1.18

That is neat. While I understand they changed the thm and con spells to better define each class and their job expansions, having the characters in the game acknowledge the change and giving an actual in-game reason for why this change may have been made is nothing short of great work! Aside from explaining how monsters suddenly became bigger, I wonder what other hidden stuff like this is out there!