NE146

I think it sounds like some dummy at Youtube just got confused and clicked the wrong button!

There's plenty of others on there. And who's going to deliberately enforce the blurb from a pre-internet box? This is a weird one for sure. It does sound like someone pressed the wrong button or there was a glitch with the algorithm.

Well, it's not a copyright issue. Just scanned through the Community Guidelines. There's nothing that covers this. The CG doesn't include copyright infringement. For that, you'd have probably got a copyright strike. You didn't overdub the audio with sounds from Debbie Does Dallas, did you?