I actually happen to think Filoni does a great job with this show, for all the problems presented by Mr. Lucas.
I can imagine:
FILONI: Let's put Delta Squad in the show.
LUCAS: Sure, but only as a cameo, because they're too awesome, and we can't have anyone better than Jedi.
FILONI: How about ARC Troopers?
LUCAS: Sure, but we have to kill off half of them to make sure they're not as awesome as the Jedi.
FILONI: Um, sir, the Clone Wars miniseries had clones just as awesome as Jedi...
LUCAS: And that's why we're trying to bury that show.