"Animal Farm" is a satire of the Russian Revolution.
What nl is attempting to do above is the latest iteration of what Animal Farm and 1984 both received from those who could not stand the spotlight of their scrutiny: Claim that the target is something else, and/or that Orwell's attacks are so pedestrianly obvious (since "everyone knows" that Stalinism is bad) as to be pointless.
Um wow talk about bad faith!
Actually it's been about 35 years since I read Animal Farm, so I took what the review said as valid.
(Just pointing out the fact, not at all agreeing with the vile accusation against you.)