WORK OF ART

So, if I'm not mistaken, Ice Nine Kills, Work of ART is playing in the background in Terrifier 3.

Does the music video exist in that universe? Would that not be distasteful? Did no-one say "Wow, that girl looks a lot like one of Arts victims?". Does David Howard Thornton play art? Does the clown cafe girl exist in that world? My brain hurts.