I think the "hype" was that Black Panther and Shang Chi were Marvel COMICS first Black and Asian super heroes. In the comics, Wong was Dr. Strange's "Alfred", not really a super hero.
Speaking strictly about the MCU I agree with your points, but I had always taken the marketing as, first of all marketing, and second,mainly a reference to comics history.
Speaking strictly about the MCU I agree with your points, but I had always taken the marketing as, first of all marketing, and second,mainly a reference to comics history.