A) What about this commercial tells you it's a "BLM show"? This is not a rhetorical question. And please don't tell me it's because Byrne quotes James Baldwin.
B) You'd have to be looking pretty hard (and perhaps have an axe to grind) to spot Spike Lee in the brief cutaways to the audience in the trailer, much less claim that this micro-moment makes the film "all about him".