I grew up with a certain degree of nonsensical in my life, and I love it.
(This may be the key to the modern condition: we've ceased to expect a rational narrative to our art, our politics, our lives; at the same time, Enlightenment ideals deny any non-rational exploration of the world. The nonsensical is then reduced to the fringes of discourse: humor, children's stories, "modern" art.)
Sometimes, we don't recognize the thing we've been missing until we find it. That's how I felt throughout The Muppets. All the other sources of humor, of joy, of unexpected celebration were just filler as we waited for this. I won't get into the details of the plot for the sake of spoilers, and frankly, I think the details of the plot are secondary to the emotion and the flavor of the movie.
This was a movie with a taste. The last movie that left me feeling like this was Lilo & Stitch, ten years ago. Go see it. I'm going to see it again.