No one spots the 'elephant in the room' in Animal Farm.
The novel is a thinly disguised morality play about aristocracy -- "humans" who own and govern 'their farms' ! -- with various types of humanity depicted as "animals".
The moral of the story is that regardless of the intelligence and abilities of the common man ("pigs"), the natural order of things is for 'Farmers' to own and run the 'Farm' and its 'Animals'.
Pigs joining Farmers actually occurred a couple of centuries earlier in England. It was called a "Corporation".