The problem is that their income stream has already been interrupted - in a big way. the Great Øbozo Misery tour is hitting NASCAR just like everyone else. They can ill afford to alienate their base - folks who like the General Lee and don't mind or care about that flag.
I agree, the General Lee is a part of history whether you like it or not. I was a kid when the show started- could care less about the flag and do not find it offensive whatsoever.