So in the dark brotherhood you get to meet the emperor and have dealings with the penitus oculatus, being an imperial and major empire supporter, i would love to meet titus mede but they put him in the dark brotherhood questline, what were they thinking?

Mm I guess it would make sense even if it is only to congratulate you on your victory, but It's kind I'd hard for him to be involved in anything any more since he's a corpse