I think that some people are missing the point of the song.
Before the song came out, when people were analyzing the lyrics, the general message seemed to be about not wanting this generation to end (in a manner of speaking). This is where the upbeat, modern nature of the song comes into play. A summery tune to play with the windows open. But to contrast this, are the lyrics. Lyrics about being in a sort of twilight zone as far as fitting in goes. So it's like the lyrics are trying to clutch onto the sort of song that they themselves are located in.
My first listen was about a 6-7. Didn't really know what to think about it. Then I found out about the sampling. Listened a few more times. Kind of grew on me. It sounds like Glass of Water and A Spell A Rebel Yell mixed together. I enjoy the song immensely. Very joyous and well constructed. But I do hope that LP5 will take on a different tone. When I heard the teaser for the chorus bassline, with the Radiohead-esque electronic sound, I was pumped. I'm just hoping for a slightly darker, more serious sound in LP5. A return to form, if you will.