You make a very good point my friend. Now this the main reason as to why he decided to write 1984, and it is very true that INGSOC, stands for "English Socialism", but it wasn't because Orwell completely changed political views is why he wrote it, it was because he now realized and saw for himself that both sides of the political spectrum can have it's evil and corrupt sides, he wrote the book as a warning to people, to be aware of these dangerous potential that can be brought from socialism, nationalism, communism, fascism, all political ideologies should never be completely trusted, for every ideology will have it's dark side.
I am going to say it now (Knowing that I might get backlash for it) George Orwell's "1984" was not about the left nor was it about the right, while George himself was a socialist, he wrote the book to point out the far extremities for the two sides, authoritarianism, and how no matter what side of the political spectrum, there will always be extremism (Communism of the Left, Fascism of the Right). It just aggravates me whenever people post this sort of stuff, because they are becoming the same people in "1984" people who will shout out how one side is the extremist, without look at their own politics. =]