If we look precisely at the details, Lenin wasn't great person with high ideals, innocent of crimes. If we look precisely at the details, tsar of Russia was killed, not exiled like the owner of farm. If we look precisely at the details, the Boltshewik Revolution didn't overthrow the tsar, but the only one Parliament elected in Russia in the democratic way. And what is more, Trocki run away, but then he was killed by the communist's agent, Frida Kahlo's lover.
If we agreed on your interpretation, Idun, we would have to say that Stalin is the one responsible for the all evil of the communism- and it isn't the truth. And finally, Orvell was disappointed with the whole communism, not only stalinism, which was shown in his another book "1984". We can also deduce it from his reaction for the Spanish Civil War, especially the participation of other socialists, like Hemingway.
P.S. Don't you think that we monopolise a bit this discussion? Please, anyone, make a comment!