Could you explain what exactly is Orwellian here? Not meaning to pick on you but you're currently the top comment that doesn't attempt to Chakrabarti engage with the topic.

I don't see much evidence of anything other than a crap algorithm here as yet.

Orwellian is often used to describe deliberate and malicious censorship of information, but I think perhaps this case is an even more accurate parallel: creating a convoluted automated system where all participants can believe they are acting ethically but the net effect is censorship of information which would damage the system and restriction of individual expression.