I can understand the sentiment. It seems weird. Though it's far less about doing art "correctly" and more about actually hiring minorities for roles that are aping off of their uniqueness. Similar to how Warwick Davis was complaining about Disney not using real little people for the real life Snow White. A lot of people misconstrued his complaints, but he just wants little people actors to have jobs and not have to scrounge around and struggle for work and end up exploited.
Also similar to people complaining about Tom Cruise starring in Digger. Piles of makeup just to make him look old and frumpy. They could've saved millions and not paid scientology and had an actual old frumpy actor do the role, which would've been infinitely better than Cruise.