Thank God (and Joel McHale.) I know not everyone thought season 4 felt different, but I had to stop watching.
The fourth season was really hit and miss. I ended up watching all of it and thought it was average, but there were a couple of good episodes mixed in there. One of which involved Muppets and was Super charming. I definitely recommend going back and watching it regardless of your feelings on the fourth season.
I saw this one and thought it was cute, but like the rest of season 4 (that I watched), I found it kind of aimless and not very funny. In general, I thought the more conceptual episodes that Community had done so well in the past felt really unfocused this time around.