It was a response to the original comment of - I'm not going to call him a liar, because that presumes malice. He was wrong and irresponsible in his defaming statement. - which I still think merits sarcasm.
I could have done better however, so in that spirit, here's First Dog on the Moon's take on the event - http://www.theguardian.com/commentisfree/picture/2015/sep/18...