It is important that you review the Kotaku comment(https://www.kotaku.com/gaming/racism/counterpoint-sony-ad-not-racist-185148.phpcomment) on the ad. I am surprised at the Guardian twisting the post to incite comment and debate. I have excluded images out of choice.
The only comment I wish to add is that many people will not view the campaign as a whole and without this the images are explicit in their provocation. Many will see the images in isolation, and if viewed in isolation the assertion toward racism in amplified.
As for TBWA - I do not concur with their use of disruptive advertising in this context; maybe any context. Their methodology is a disclaimer for their ideas, if and when their ideas create social disruption, whose consequences victimised individuals and groups alike, (such as teachers) have to deal with.
The advertisements clearly lack the sophistication of those created with Benetton.