Is there a bit of FCC hypocrisy going on here, Justin Timberlake Super Bowl, vs. MTV Movie Awards?

There was Janet Jackson’s infamous wardrobe malfunction possible NSFW!, all 2 seconds of it, and there was an uproar, and the FCC was on the war path. Then you have Justin Timberlake again, providing a full-on grope possible NSFW!! of Mila Kunis’ breast, and no uproar, at least it didn’t make the evening news that I know of. So what gives? Is 1.5 seconds of pastie-covered breast more evil than 5 to 7 seconds of full-on clothed boob and crotch grabbing? It isn’t like MTV Movie Awards are broadcast at a time families and children would most likely miss. So why the uneven treatment?