It seems like the main reason most people dislike MFS is because it ended up being deviated from Jim Lewis and Joey Mazzarino's original script so much (because the nature of Gonzo's origins and his identity were still supposed to be a mystery instead of bringing us the closure we ended up getting), and again, people don't like the choice of Tim Hill (who worked on a bunch of Nickelodeon shows like Rocko and KaBlam) as director because he didn't even like the Muppets anyway.