It probably would have been better, but Bruce needed the original concept for the comic, which seems really important for him. And because he included Eternity (I love it, but it's the perfect bonus song). Maybe he also didn't want to leave out songs like Resurrection Men and Rain, which seems to be one of his favorites. They wrote many songs for the album, but we don't know how many of the leftovers are with the lyrical theme of the original concept in mind. I guess we'll see for the next album unless Bruce changes them. We know one of them, the song called Nightmares. I really want to hear it. I think it's a traditional metal song. Let's also not forget that Bruce has some more leftovers (~10 songs) from the TOS era.