This is true.
Though, if matched up against a Rider, it would be worth it to Focus then Lecture. Unlike Joss/Executioner/Leveticus - whose ignore effects are baked into their attacks, Lecture Notes is a Condition that turns off ALL triggers, not just Df - it would also kill their Attack triggers for a turn (in the case of Hooded, that means loss of extra damage, or loss of marker removal. Either could be huge, given the state of the game)
I play the Leveticus Horsemen list, and one of my normal opponents is Ressur player. I have learned a healthy respect for the Students and Valedictorian haha