its been over 2 months since the game came out, why have you not done a co-op run yet?
I'm not adding it I'm not stopping you from doing a run either
I think that it was also mentioned in respect to UC co-op that somebody needed to break the single player WR with it, so for a start maybe try doing a run that’s faster than the current WR for whatever category you want to have co-op to prove that co-op does mean something in that category, otherwise it would just be random people getting terrible times and putting in no effort but still getting top 3 because nobody plays it.
Even if it is just people doing random runs with no specific route, it can be a spark to get the categories going. Who knows, it could be a possible donation incentive at an event like GDQ.