I for one like Moondance, and like many other players on here, learnt how to do basic walking lines to it. It was my first tentative steps into 'jazz' playing.
I think the problem with labeling Moondance and for that Fever as jazz tunes is just that, they're not strictly jazz to begin with. Both are really blues tunes that are trumped up to sound jazzy. If you understand this, then the music makes a bit more sense.
Pay no heed to those that slag of such music, if you like it good for you, enjoy playing it All music has its place, and these tunes are no exception.