was the difficulty she had in getting work because she did not fit certain beauty standards. The Saldana pick was lemon in the wound because they chose someone who does (and benefits from it) to play that part. Essentially, the highlighted that Hollywood hasn't changed that much from Nina's time. It's easier for actresses who look like Zoe Saldana to get work than those who look like Nina Simone.
Nothing like that appears in the Marshall story. Was it arguably easier for him because of his complexion? maybe. But it wasn't explicit like it was for Nina. And it wasn't a necessary or important part of his story (his contemporaries were civil rights activists and attorneys some of whom were darker).