So, the woke brigade are calling this "racist". Just like everything else in the known universe.
Don't cast a black person? White supremacy. Racism.
Cast a black person? "Tokenism", "Magical Negro". Racism.
Cast multiple black folks? Characters aren't virtuous enough. Racism.
Cast a Mexican/Puerto Rican in the lead role? Wrong kind of ethnic minority.
Basically, the tolerant left will stop harping for five seconds only if a cast has innumerable black people, playing highly virtuous characters, and ultimately winning awards over white people.