Associated Press: "Pepsi pulls widely mocked ad"
. . . Larry Chiagouris, a professor of marketing at Pace University, said that the backlash was in part because Pepsi was a couple years "late to the party" with its message about unity, making its ad seem exploitive.
Still, he also noted that the fallout wouldn't necessarily be that damaging, since a lot of the negative sentiment expressed on social media is "easily washed away overnight."