I believe in the theory that some brazillian dude worked in Episode 2 and tried his best to troll George Lucas.
Count Doku sounds in Brazil: Count from the ass(this one the team responsible for the dubbing changed to Conde Dokan in Brazil) Master Sifo-Dyas sounds EXACTLY like: Master get fucked(Mestre se fodia).
And the names works, Doku is a huge asshole and Sifo-Dyas only reason to be in the history is to get fucked.