Comment by kevingadd

I ended up digging around on the channel and tracked it back to some people of that type, and they had some other uploads that were basically gloating that the video was immune to moderation. It was a rip of the Undertale soundtrack, so laser-targeted at kids (if you're unfamiliar with Undertale, it's recognizable enough that one of its characters got added into one of Nintendo's games)

Sadly if the Undertale soundtrack was aggressively content ID'd/DMCA'd, that would have been a way to take it down. But that would penalize everyone who uploads footage of that game, so obviously that's not done.