I dunno, they may have a point. Take a closer look at the picture they use in the article.
On Dunne's sleeve is a patch that says 'HS 29'. Clearly, the 'HS' stands for High School, and from that we can deduce that '29' stands for his year of graduation, 1929, MEANING, that Dunne is either some sort of immortal that steals the bodies of younger men in order to be ever alive and youthful, OR he stole that shirt from an actual High School graduate of the class of '29.
Either way, Dunne is a FRAUD, and that's how he stole his own music.
Clearly that's how it is.