You chose three films that are widely considered to be among the greatest films of all time in their genre.
It's not really a rousing endorsement that practical's greatest achievements are cases when you have the thematic luxury of not actually showing anything.
And remember, the the prequels were literally the first movies to have CGI major characters. Basing the effectiveness of the technique on them would be like basing all of practical effects on the first movie to have puppets.
Not surprising, given that there aren't many triple-A movies with Black lead actors around in the first place, much less movies that are predominantly Black starred - it was labelled as "revolutionary" [1] for a reason and so generated a lot of (well-deserved) hype. That it turned out to be a damn good movie too only helped the matter along.