Banksy says his art-shredder malfunctioned, should've sliced up the whole damn thing

Is Banksy, anonymous art provocateur, the troll? Or is he, in fact, the one being trolled by an art community that celebrates notoriety more than artistic merit? He certainly tried to be the former when he self-destructed a print of his “Girl With Balloon” just moments after it was purchased at a London Sotheby’s for $1.4 million. Sotheby’s, of course, embraced the prank, declaring it “the first time a piece of live performance art had been sold at auction.” It’s now called “Love Is In The Bin,” its price unchanged.
Would (or could) Sotheby’s have done the same had Banksy’s prank gone as planned? In a new “director’s cut” posted by the artist to YouTube, Banksy offers an extended look at the auction that includes more reactions from the pearl-clutching masses and even a shot of the perpetrator pushing the button that triggered the frame’s internal shredder. He also, intriguingly, teases that the whole thing didn’t quite go as planned.