Yesterday, we learned of the appointment of Sarah Mullally as the new Archbishop of Canterbury. My social media feed has been awash with commentary (which I will get to), ranging from very positive to very negative concerning this first lady archbishop, an office that was seen (but no longer) as Primus Inter Pares (First Among Equals) of the Primates of the global Anglican Communion, which consists of around 85 million people across 165 countries.