Those Cheetahs look more confused than anything. Usually when they attack their prey they go for the neck or throat to suffocate it. They were both looking at that robot like “Dude, this thing doesn’t even have a head”
I believe the Cheetahs behaved like that because the robot gave no sign of fear whatsoever. Those animals are fine tuned into smelling and seeing reactions in their prey. They could even be able to smell hormonal changes. So if they see no fear response then that signals that the robot is stronger or more dangerous than them, which in turn makes them fear it. That’s quite fascinating to observe. Makes me think the whole predator/prey interaction is such a dance. I also loved how at the beginning the 2 cheetahs passed walking as like they were dancing, they were sinched. Metal robot met flesh robots. Very cool!