Wow... why do so many people" not like Muppets From Space? And Kermit's Swamp Years? They're two of the better present-day Muppet movies around!
I guess it could be a generational thing.

(I'm a geezer)
I remember going to the theater in 1979 and seeing the most wonderful movie in the world,
The Muppet Movie. I was five years old. I still remember the conversations with my family on the ride home.
That film helped set me on my life-path. The whole "making people happy" with your gifts made sense to me. It was an even-paced movie with fun on many levels.
Muppets From Space and Kermit's Swamp Years just didn't hit that chord with me and also seemed to be a bit presumptuous in how they emulated earlier (and arguably better) films without much finesse. Well, that's just my take. Muppet Movie, Caper and even Christmas Carol are geared to all ages more than the Space or Swamp.
They seem kiddified in comparison. There are some brilliant parts to them, but just don't seem to have the original spark/edge and genuine sweetness of other projects.
I did like the Muppets Oz and Very Merry Muppet Christmas Special (and thought the presence of Pepe and the nipple jokes did work, while some other fans cringed). Just my take on it.
My many years around MC have shown me that we've all got our own unique take on the Muppets. I think it does have to do with how each of us was introduced to them.
Anyway...chipmunks should have shoes! Who's with me?