"Augustinus is a convert...."
THAT would explain a great deal! We've got them too; more Orthodox than the Patriarch of Moscow!
Augustinus is unnecessarily snarky, and I'm not sure he really understands what he's talking about. I do understand that he is doing direct harm to the delicate state of affairs between East and West, when he should be praying instead for understanding and unity. And that's a sin against charity.