The article is wrong when it says "the true reason however for Mackay’s sacking was revealed retrospectively in August 2014, when a dossier sent to the FA by the Cardiff hierarchy contained evidence of text messages that Mackay and Moody had sent each other of a racist, homophobic and discriminatory nature", because the messages didn't come to light until months after the sacking - they weren't the reason why Mackay was sacked,

However, I believe that, leaving aside whether the sacking was justified or not (what's the point in going over something that has been done to death over the past few years on here again?), the central point of the piece contrasting how Mackay's career has been affected by his use of racist language with the fact that John Terry and JonJo Shelvey (who, yet again, proves what a plank he is with his “they are still in the Championship and we are in the Premier League” remark) are allowed to carry on as if nothing happened is a fair one.