WS, Nice analysis. It's interesting how a book like that, which--as has been observed--was about the tyranny in the Soviet Union, so clearly applies to the abuse of power in the WT/JW religion.
I read this book a couple of months ago at the suggestion of a friend that had never been a JW and found all the same parallels as you. When you read this allegory the lies, corruption and hypocrisy of the pigs is chilling. But just as chilling is the weak-minded complicity of the farm animals that go along with it.
When you apply this to the WT and ourselves as members/former-members it makes us take a good look at ourselves and make some decisions as to where we stand.