I made it up and I'm a liar, huh?
Saying that the best "genetic combination" between white and black parents is that you get the "mind of a white man" is equivalent to saying that black brains are inferior to white brains; then contextualizing that racist thought with the follow up that black people just have "different brains" removes all doubt and excuse that he's a classical racist. Rogan was 44 years old when he said this so being "young and dumb" also isn't an excuse.
Rogan never apologized or acknowledged what he said in this episode, he simply tried scrubbing the entire episode off the internet hoping people wouldn't bring it back up, which hardly suggests that "he has changed".