They have already addressed it. The have already built the dirt road, and soon enough it will be paved.
Attributes, skills, etc. are cultural. They said so, even if some feel it was disingenuous to the original writing or intent of writing. So they will have this world's culture, or this realm's culture or this place's culture, and that world's culture, that realm's culture, etc. On one elves will blend into the forest. On another, they will receive spell benefits. On another they will gain divine abilities. All of this will be able to skirt the issue, and publish a boatload of player-based books, which just so happen to sell more than their adventures.