I don't understand why there was a "plus 1" (which got miswritten as "plus 11"). So obviously it was to get a lot more characters who have not yet been on the show, but was there a special reason why employees were allowed "plus 1"? We don't even know who was invited by who.
I find it interesting that the only member of Geri and the Attrics to actually appear is the one who looks like Carter, who doesn't appear, and this member is shown right beside Howard Tubman.
Another thing I've noticed recently is that all the characters who have appeared since the reboot have had reasons to be there. Camilla returned after they brought up that she left Gonzo, Robin visited the set, and all these obscure characters show up because everyone was allowed to bring a friend. We haven't had random characters just showing up in the background (unless they were part of the crew in the first three episodes). I started wondering if they were holding off from showing too many characters in the background, in case the writers or whoever wanted to "properly" introduce characters (in this shows continuity). In this episode it's hard to tell if the Muppets know all of the characters who show up or not.
It seems like the studio is the only place where we see crowds of Muppets. I know that in the movies, we really only see Muppets in the background if it's supposed to be a place full of Muppets (like the screening room, Happiness Hotel, Manhattan Melodies, the boarding house, the sets of MCC and MTI, etc.), but I feel we should have had more of a Muppet presence outside of the set, or at least a bigger mix of Muppets and humans. Rowlf's Tavern would have been a great place to show characters who don't really work on the show (it would have been great to see Statler and Waldorf eating there as well). It also would have been great to see mixes of Muppet and human extras in situations like the retreat Kermit went to in "Pigs in a Blackout" or the class Piggy and Janice went to in "Got Silk", or more Muppet employees working at the hospital in "Generally Inhospitable". Even if they were just Whatnots or the kind of obscure characters fans don't necessarily care about.