Well, I don't even know anything about where or when it airs. . . and I'm a huge Star Wars fan.
As was said, almost all the main characters have plot immunity. You know nothing big is going to happen to Obi Wan, Dooku, Anakin, Grievous ect. that will in any way permanently change them or really make an impact on the war.
You know the war will never end, you've already seen how it ends and it's definitely not kid friendly. Frankly, I find it amusing they are making a kids cartoon out of the exploits of Anakin Skywalker. . .when shortly after the events of the show he becomes a genocidal monster (and even before the events of the show, he wasn't exactly too good).
We know how it eventually has to end, the only main character with no plot immunity is Anakins Padawan, and she's probably going to die.
At least the earlier Clone Wars animated mini-series aired between Ep II and Ep III so there wasn't the "just skip to the finish" feeling because you didn't know how it was going to end.