What's up with Glenn Beck exposing deceptions of O'Keefe's NPR sting?

Why did Glenn Beck's website The Blaze publish a critique of the NPR sting video? Politico reports on reactions to the analysis by Scott Baker and Pam Key, the first journalists to compare the 11-minute video that prompted resignations of two top NPR execs to raw videotape that was recorded during James O'Keefe's undercover sting of NPR. Jennifer Rubin, a conservative blogger for the Washington Post who has criticized Beck, questions “whether (Beck) is trying to do something on the up and up and advance good journalism or whether he is doing it to create a controversy and stick his finger in the eye of the right in some ways in retaliation for all of the negativity that’s been expressed of late.”