Mitch Albom, "Austin pastor’s false cake charge sets real injustice back", Dallas Morning News 5/23/2016:
Brown set back every future case of intolerance, allowing critics to ask if it’s real or fabricated.
As Albom's column explains, Jordan Brown is the openly gay pastor who accused the bakery at Whole Foods of adding an anti-gay slur to the decoration of a cake that he ordered there. Store surveillance video from the check-out line demonstrated that part of his story was false, and eventually he confessed to having fabricated the claim.
What motivated Vance Koven to send in this link was the use of the verb set back in the headline and the body of Albom's column. Wiktionary defines the relevant sense of set back as "to delay or obstruct"– and Albom obviously meant that Brown's attempt at deception will delay or obstruct future campaigns against the type of "injustice" or "intolerance" that Brown claimed to have suffered.