To be fair, I feel like that's kind of what the artist was hoping for. Would you be reading about his piece if some Philistine with no concept of what constitutes art hadn't thrown it away?
There's always someone arguing about the purity of art. Art doesn't have a strict set of rules. Anything can be art. Saying otherwise limits it's ability.
The labels on the cans were hand painted with acrylic, so there was more effort put in to this installation than if they just grabbed some beers at the local convenience store and dumped them out.