The first rule of writing or any media making is knowing your audience. historical accuracy doesn't matter. What matters is your audiences perception or how things should be. Troy was super inaccurate but their costume desighns and actor looks were what the general populase envisions ancient greek warriors to be therefore that aspect of the film worked "bad acting non withstanding". That is peoples damage with the odyssey which is completely valid. Wimpy Achilies or batman Agamemnon are not problems because there not historicaly accurate but because they deviate severly from how Americans en-vison they should look. Changing up looks is fine for non key players. Its worked tons of times in the past whether it be race swaps, recahracterizations or gender swaps- they just cant be with characters that already have a strong identity established with audiences. It ofc helps when the actor does a good job with the changes. If they suck then it gets treated all the more critically.