With the exception of that ONE Adult Swim that got away, we fans like to brag, "They don't mess with the 'Stones."
![Very Happy :D](./images/smilies/icon_new_biggrin.png)
One time, back when Cartoon Network was treating all of HB as if it was fit for passive-aggressive kitsch ridicule, John K. wanted to do a "New Style" Flintstones animating the old soundtrack to his own style. After a little, um...
feedback from the fans, he didn't get to do it.
You can pick on Scooby. You can pick on Scrappy. If you're going to be a jerk about it, you can even pick on Jonny Quest. But NOBODY picks on Fred and Barney. The fans like to keep it that way.
(And that
especially goes for every single "edgy" Fox animator who thinks they're the "reincarnation" of the Flintstones because they've got a dumb guy in prime time.)