Taking shots at The Man in Black? Blasphemy!
Whatever, he was right on. Johnny Cash is a great artist (con artist that is). He portrayed himself as something he wasn't to sell records. He took ownership of music he didn't write.
I'll tell you two of the greatest losses in popular music, and they died from accidents. Jim Croce and Harry Chapin. Both sang songs that told stories. Some humerous some serious, but most politically and religiously secular. They were truly great artists, IMO.