The soup cans are from a 2004 Campbell's limited run. They aren't really slanted. They are shot at an artsy angle just to irritate the viewer.
The quote is from an article in ARTnews. As I was reading it, I was struck by the distance from New York City to Jerkwater Lake, Minnesota. Andy Warhol was never taken seriously as an artist out here. He was a odd P.T.Barnum blip on the evening news that soon vanished into the News of the Weird, to be forgotten forever. He is not "everywhere" nor "alive". In general, art here in the outback involves recognizable scenes that are populated by either children with oversized eyes, running horses or flying ducks...but not rows and rows of soup cans or Marilyn Monroes.
(Disclaimer: I was an art major. My daughter began life as an art major, only to switch later to philosophy, for better job opportunities.)