A strong S is not into innovation, they would be into what is conventional.
I completely disagree with this. Madonna is conventional? Elvis? Donald Trump? Hemingway? SPs are called "improvisors" for a reason.
If MBTI bothers people so much than just stick with Keirseyan temperament (which is not based on MBTI). SP (extraverted sensing dominant or auxiliary) versus NF (intuition and feeling dominant and auxiliary).
SPs:
concrete language
pragmatic/utilitarian (independence)
seek to master technique
value aesthetics
want to perform with skill
prize freedom
trust impulses
need to make an impact and all of their behaviors are centered around making an impact
risk-takers
life is play
All of that fits Michael Jackson.
NFs:
abstract language
affiliative (interdependence)
value authenticity and ethics
prize having a unique identity
need meaning and significance and behaviors are centered around relationships
While I can relate to Michael Jackson in many ways, I don't see how he was nearly as relationship-centered as an NF typically is. Our relation to humanity and human beings is our life. He would rather relate to animals and children, not soulmates and empathic companions.
And I don't think his musical videos are really all that abstract. His videos mostly tell stories and use iconic imagery, both things highly associated with SPs more than any other temperament. "Thriller", "Beat It", "Smooth Criminal", "Blood on the Dance Floor" all tell very straight-forward stories. What makes any of his videos impressive is the dancing, the fact that a lot of what he did, he did first, and the vivid images. And I think you have to look at someone when they're at their strengths if you're looking to identify type. At his strongest, Michael Jackson was far more like an SP than an NF.