How would you like it if you had guests for supper, and after you led prayer in saying Grace, one of the guests stood up and announced that he would now be reciting a different prayer (implying that your saying Grace somehow wasn't "inclusive" enough)?
This all isn't occurring in a vacuum, devoid of context. "Happy Days Are Here Again!" is also a "beautiful song that is not the slightest bit revolutionary." But to sing it at a funeral, just as the casket is being lowered into the earth, would have certain, umm, implications.
For more than a century, "Lift Every Voice and Sing" has been promoted as a "Negro" (later: "Black") national anthem. It is dripping with political implications. It's not "just another song."
Regards,
I find it totally appropriate. I guess it’s a matter of opinion.
The point is to eventually replace The Star Spangled Banner with it, I give it about 20 years before that becomes reality.