I tend to agree with the premise of the article, but found this line from a self described "big government" type, funny: We have always been at war with Eastasia.
big government != mind control. EDIT: to add, I thought that Orwell actually wrote an essay called "I am on the left" although I can't now find it. He was definitely not right wing - he was just very critical of communism as a supposedly left wing system.
Within the Communist side, there were further factions (NKVD:Stalinist, POUM:other Marxist). Orwell joined POUM. As a result, he was condemned by Stalinists and had to flee back to England. He spent much of his career warning against Stalinism, from a position on what might be called the social democrat left.