Yeah, that George Lucas and his pet characters like Anakin Skywalker and Obi-Wan Kenobi. Sorry, dude, you're stretching more than Reed Richards on this one.Filoni can't let go of his pet characters from the Clone Wars era and Rebels, Feige at least understands how to properly build a universe and move on from one generation to the next.
Frankly, Lucas should have been more like Feige himself.
As for Filoni's so-called pet characters, Ahsoka Tano happens to be the character with the most compelling arc in the entirety of the Star Wars canon. Hers is a story that he's been telling for 15 years and is obviously not done with the telling. George Lucas told his epic story about Anakin Skywalker in this universe over the course of 25 years. Dave Filoni is George Lucas' chosen heir. His Padawan, if you will. Do you have a particular reason why he shouldn't be allowed to finish his own epic about Ahsoka Tano in the Star Wars universe?