The plot reads like a sunday school scare piece to warn children about the dangers of satanism. It’s so vague and allegorical that you can’t really critique it. The message is basically “if you revolt against the capitalists, a scary bad man will take over and hurt you.” Also pretty disgusting that it portrays workers as farm animals and capitalists as humans. It’s a very “American schools during the Cold War would make kids read that” kind of book.
It’s not surprising that Orwell was a bigoted snitch who ratted leftists out to British intelligence, and was especially keen on turning in jews, black people, homosexuals, and anyone he deemed “anti-white.”