The song sucked donkey d1ck period. No need to excuse the performance just because it was vai and timmons butching the song. I agree with guitvai1, in that some great song have been played on RG's and Jems. If you want an example, watch the video performance of Vai at the Grammy's with the chick that sings "I'm like a bird" (I can't remember her name).
Abwalsh, not everything Vai plays is incredible.