The more interesting question is: what do we do with the art of people who were revealed to be terrible? I first saw people wrestle with this idea for Michael Jackson and recently it has been a big issue related to Kanye West.
https://en.wikipedia.org/wiki/Cat_Stevens%27_comments_about_...
There is no ambiguity here, Yusuf Islam called for Salman Rushdie's killing over a book that a Shia cleric claimed insulted the prophet. A book I might add that neither of them ever read. Later that year he again said Rushdie should be killed in a different context.
Any notion why you have such a PoV?
In the TV context it was clearly a rhetorical / hypothetical statement .. one of the two utterances was literally on a show titled "Hypotheticals" .. which I guess you watched along with reading the Qur'an, numerous commentaries, reading Rushdie's book, etc.
In a statement in the FAQ section of one of his websites, Islam asserted
that while he regretted the comments, he was joking and that the show was
improperly edited.[94]
I just don't see how the video I watched could have been editted in such a way that would misconstrue the words I just saw mouthed by this guy.https://www.dailymail.co.uk/video/news/video-2750537/Video-1...
The video you linked has been edited twice .. once from raw live footage in order to create the TV panel show that went to air, and again a second time to extract and join short specific sections from the TV show to create the segment you linked .. with additional voice over added.
The original TV footage appears to have been sourced from Geoffrey Robertson's Hypotheticals.
The very name "Hypotheticals" might indicate to you how you the second round of editing has led you astray.
The segment you linked has removed all context .. there is nothing of Geoffrey Robertson setting up a situation and instructing panel members "to imagine they are ...".
All you have there is a tight segment lacking the larger context with an added voice over claiming that this is Islam speaking from his heart as himself, nothing about being asked to play himself as a more fundemental true believer.