When he says “messaging” I know he means the inclusion of those minority characters because he referenced Black Panther as a success.

No, he doesn't mean "inclusion of minority characters" - by the way - women aren't minorities.

What he means - is that they did it in a shitty and clumsy way and a way that was not good quality.

Do you not understand the difference between "including monitory characters" and "making including minority characters your primary focus to the detriment of the quality of the story"

Because apparently "including minorities" alone just isn't enough to keep audiences interested.

Of course, since you only have one interest it's impossible for you understand the bigger pictures.