I think that is one of the points of the setup.

Because the PR's died so early in the test game, the Role Oracle didn't really have a point. Even if they were alive, I feel like the Role Oracle was more negative utility to the wolves. i think it makes more sense to add a town KP so that the Role Oracle has more opportunities to die and reveal something. I think if you add a another Role Oracle and Mafia PR, then adding a town investigative works as well. The 2-1 ratio for Role Oracle to Town PR seems a bit small, but the problem with increasing it would be making it too townsided.

Some otherwise pointless ponderings on improving the setup.