Someone rolls out this technology, everyone of course, fucking hates it, especially since a lot of people have Youtube videos on for background noise.
Someone else uses this tech for shock value, perhaps a company putting something horrific that people can't look away from as a misguided way to get the ad in people's heads.
These incidents lead to either the US, EU or China getting up in arms and banning the tech.
While we are on the subject of using yourube for background noise... why the fuck are they serving me ads for mobile games with an obnoxious narrative? If you know I am just listening, why not just serve a normal radio type ad. I am never going to download a mobile game while using YouTube for music.