The overpowered appearance of some characters is just Tartakovsky's style. The whole thing plays out like a compressed episode of Samurai Jack (best cartoon EVER). He doesn't have the time or animation resources to show in precise detail how the battle is playing out, so the whole thing ends up looking like rock, paper, scissors. Clones beat battle droids, assassin droids beat clones, Obi-wan kicks them apart all by himself. If a bad guy lasts more than 30 seconds, you know he or she is important.
Samurai Jack plays out the same way. You don't usually get the idea that someone is tough from the way they move (the animation is, after all, very streamlined). Rather you get the idea from how quickly and efficiently they dispatch their enemies.
