More time is especially what the special needed. I still feel that this was a Lady Gaga concert special with the Muppets added in last minute. One to promote an album, the other to promote a movie. There should have been more interaction and better interaction. Not just between the Muppets and Lady Gaga, but the Muppets and all the special guest stars. Anyone see the Joseph Gordon Levitt word of the day with Murray? He was perfect in that one. Is a shame we didn't see more of that on this special, and he only talked with Kermit once. Ditto Elton John not being with in a thousand feet of a Muppet.
Other than that, I'm pretty forgiving of this thing. It was meant as a one time thing, it was a disposable marketing gimmick for both sides involved, and it worked in that context. had this been something annual, it just wouldn't work.