Why would they just confirm all the fan theories about the world elite running a massive illegal money laundering ring spanning the globe, and follow it up by proving that the same elite are trafficking children for sex acts if they didn't plan to go anywhere with that storyline?
But they made a movie episode, in 2019, to try to finally round off the series (all the actors returned). Check it out, if you didn't catch it. It wasn't perfect, obviously, but it was an admirable attempt.