Quoted from Pinstym:Mustaine gets songwriting credit on the song Ride the Lightning. That's gotta be the only reason they don't use the song. Don't want him tied to the pinball machine. I guess he'd get a cut of whatever deal they have with Stern?
There has to be some truth to this because I noticed the same thing when Guitar Hero: Metallica was released a few years ago. There were like 30 Metallica songs on there and not one of them that Mustaine had contributed to was in the game.
I would agree that some of the songs aren't a great match for pinball, but I do feel like they selected the best of Metallica (if they subbed End of the Line for Nothing Else Matters it would have been a greatest hits album). Of all the songs not in the game I think Hit the Lights would be the best fit. It was the first song Metallica ever wrote as a band and would be bad ass with a synchronized light show on the Premium/LE. Aside from that I love the music.