I would settle for a short story tying it up at this point, he could do that.
I disagree - I prefer that Fincher do his job, tell the story the best way possible instead of trying to force everything into a single season or two for “closure”.
I also think the only reason why you feel this way is BECAUSE Fincher took his time to make two fantastic seasons and a killer cliffhanger. Had he not done that, folks here would probably be complaining about how Mindhunters is a rushed, crammed, underachieving show and not of the quality that we come to expect of Fincher. It would be a completely different show and not the premise we are basing the discussion on.