This Star Wars Cartoon is rather poor quality. Episode 5 of this season is a good example: The entire narrative of the episode is, "Go kill those guys", They do.
It would be OK for a movie to have a 20 minute sequence about an invasion of a hostile force. That's just about standard for most war movies. But those war movies still have the currency of the character development in earlier parts of the film. This Star Wars battle means nothing, because none of the characters change as a result of it.
The Clone Wars of the show's title seem to resemble modern insurgencies, battles are won or lost, but there's no change in the character of the war. If the war isn't changing, and the characters aren't changing, that means nothing happened at all.