Because it actually attempts a serious estimate of the man and artist, rather than simply saying how wonderful he was and we live in an age where that is considered very bad manners.
https://www.theguardian.com/books/2017/jan/02/john-berger-ob...
https://www.theguardian.com/books/2017/jan/02/john-berger-ob...
This stuck out to me as particularly toxic, without serving to deepen understanding of his life.