Here is the substance of my proposed question (maybe I can ask it in Meta?):
WARNING - This contains spoilers for the Wheel of Time series.
In Wheel of Time by Robert Jordan, there are constant references to to the ethnic diversity of his world. Sometimes these are material to the plot. For example Rand Al'Thor himself (perhaps the main protagonist) is often mistaken for an Aielman. This is because of his height, the colour of his hair and of his eyes (and, we later discover, his heritage). In his own village he was unique in these respects where the rest of the village had in common the old blood of Manetheren. When he came to fulfil his destiny with his 'people', his racial similarity and heritage were important factors.
There are plenty of other examples, for instance the Sea Folk all have dark complexions.
The casting of the forthcoming Wheel of Time series ignores this fictional diversity in favour of diversity of real life actors. Is this a contradiction of Jordan's descriptions(*) or simply a fact of modern life?
Does this question belong anywhere in this SE (or anywhere at all)?
(*) Edited to substitute "descriptions" for "intentions" Also edited to add "contradiction"