I guess no harm done if Burns added something to general knowledge that had been left out of the contributions of minorities.
No harm done? Exaggerating the contributions of minorities may be "good" social work, but it's bad history.
Hollywood and PBS have done stories galore about the Japanese-American internment, about the fighting 442nd, about the Tuskegee airmen, about the Codetalkers. And no one has denied or minimized their contributions - quite the opposite. Burns' series added nothing but repetition to their stories.
It might be politically incorrect, but the overwhelming burden of America's fighting and dying in WWII was carried by white males. Rewriting history to mollify today's ethnic pressure groups is intellectually dishonest and morally repugnant.