Also.

TC mentions that CT found "ur-tech." Which means that CT is more than just a name on the list.

The Ly'lac commands use three equal signs, which indicates a six player session.

The cha.OS icon correlates to the four humans and six Dirk/Rose creations.

I have, in fact, imagined more feasible options regarding the six unfulfilled roles of the GCAT code. They could be citizens from the Candy and Meat timelines. They could not exist, their absence a sign that the Dirk/Rose session is doomed. They could be cherubs. New freaking characters from out of nowhere. They could be people from the next universe.