This is a pretty funny battle of the animals. They don't create great damage. It seems that no sheep or cats were seriously hurt in this video. Take a look at this smart sheep that gets revenge on the annoying cat. Some people might have been feeling sorry for the sheep, at first. Let's hope that sheep doesn't get eaten by the owner or something.
Perhaps it doesn't make sense to argue about who was right: the cat or the sheep. Neither of them were right, they are just two animals being animals, it seems. Probably, the cat deserved that push. The cat was invading the sheep space.