While it may be a video game tribute album, as you may have noticed, in the song list they list the games each song is from. Considering they don't list one for that particular song, it may be because it is not actually related to video game music at all, and might be an original composition or some such.
At any rate, it got closed because it is speculative - the only people who are likely to know precisely why that song is titled such, and why it is related to gaming (if at all) are the people who wrote/composed/created it, not us.
Furthermore, you yourself admitted you aren't even sure if it relates to gaming whatsoever. That alone makes it off topic - sure, a lot of their music is gaming themed, but that doesn't mean that us gamers know anything about some random gaming themed music.
To answer your second question, if the title was different, maybe it would be more directly gaming related, but that doesn't mean we handle questions about music. As it is, we rarely handle anything "gaming" that isn't video games. (There are some exceptions, like Identify this Game stuff which comes with identifying artifacts, but that is still fundamentally asking about a game.)
We didn't instruct you explicitly to ask on GameDev - this question would most definitely not work there, as it has nothing to do with actually developing games. That just happens to be a small part of the wider close reason that does apply to your situation. We are not the composers, we are not in their heads, and thus, we have no way of knowing why they called the song such.