A lot of modern ‘artists’ are devoid of any real creativity or talent. They just go (lamely) for spectacle.
I found the whole thing very boring when I first saw it, and I still do. If they were trying to put some subliminal satanic message in there, it was completely lost on me.
I clicked through parts of it, I wasn’t about to watch the full hour-plus. Didn’t seem satanic to me but I’m no expert in theology. It just looked like artsy-fartsy crap to me, nowhere near worth the time.