It's like a push 'o' war instead of a tug 'o' war. Those cages don't fall on anybody, but it is dangerous. Your legs and torso can get caught between the poles used to carry them and you can get squeezed really hard, potentially crushed. That's why there are a lot of referees watching. They stop the match when there is trouble. Watch the video. You'll see.
It's like a push 'o' war instead of a tug 'o' war. Those cages don't fall on anybody, but it is dangerous. Your legs and torso can get caught between the poles used to carry them and you can get squeezed really hard, potentially crushed. That's why there are a lot of referees watching. They stop the match when there is trouble. Watch the video. You'll see.