Just watch a Yôko Ôno performance if you're that masochistic.
I would agree with you that Yoko is torture. But this piece is very complex. Put your preconceptions or comparisons to Led Zeppelin’s version away and look at the visuals, at the comparison between dance and boxing, at the character who enter the strange world and then leaves at the end, that acts like bookends to complete the story. This takes place in a circus, a wild world. And if you are a Zeppelin fan there is the solo out of “Heartbreaker” that is played here to mix things up and musically accompany the boxing. Anyway, there is a lot here.