I think all of the people saying this version is too edgy have some clouded memories.
From the original Muppet Show, you are obviously forgetting things like:
1) Raquel Welch dancing around in a "barely there" dress, telling Fozzie that he's "Sexsational."
2) "You're Always Welcome at My House" which referenced stealing children and tying up them in the closet and freezer.
3) A more famous one is Alice Cooper's entire episode trying to get Miss Piggy to sell her soul to the Devil.
4) Johnny Cash, a Confederate Flag and a rendition of "Dirty Old Egg-Sucking Dog" with Johnny threatening to kill Rowlf.
5) Rowlf tricking Sam Eagle to say certain words that are part of the song "Tit Willow"
There are plenty, plenty more (just google/
YouTube some). The Muppets were NEVER supposed to be a childrens' act. Glad to see the new show keeps that edge, since that's their bread & butter.