Yeah, I agree that there can be plausible deniability for Nobuo for that track.
I can see the similarities with the music of The Rock, and I guess it is the fact that both tracks repeat those similar beats over and over which has meant that people have picked up on it.
However, I wouldn't have said it warranted swapping the track in the final game. As you point out, various tracks have used a similar beat.
That said, I love the track which ended up in the final game (I love both, to be honest) so while I'm fascinated by this decision to cut the other track I absolutely love the one that made it in to the moon and back.